A smartwatch will need a SIM card in order to access the cellular network for messaging, calling, and even accessing the internet. This way, it will work like a normal smartphone. However, earlier on, one had to pair the smartwatch with his or her smartphone so that it can become more functional, modern smartwatch can now work with a SIM card without having to be paired to your smartphone.
Therefore, you can readily leave your phone and consider using your smartwatch, like any other phone. It is important to note that smartwatches that operate with SIM cards are known as standalone watches. All you need to do is to insert your SIM card into the smartwatch, and you will be good to go. This article will outline the various SIM card that can work with a smartwatch and everything that revolves around them.
Can Smartwatches be Used Without a Phone?
Yes. Modern smartwatches can now be used without a phone. Since they allow you to insert a SIM card, you will be at liberty to make calls, text, and even browse the internet, as you do with your phone. In addition, these smartwatches can now access Wi-Fi and therefore allow you to access the internet using a public network. The convenience that comes with these smartwatches is unmatched.
6 Best Carriers SIM Card For Smartwatch
When looking for a SIM card for your smartwatch, chances are that you will come across different SIM cards from different carriers. Also, these cards come with different features. If you are a first-timer, you might be overwhelmed and even make the wrong choice. The good news is that we have outlined some of the best SIM cards you can consider for your smartwatch. Some of the best SIM cards that you should invest in include:
1. GSM SIM Unlimited Text + 500 Minutes & 500 MB Data 30 Day Service
The above-mentioned SIM card allows you to enjoy unlimited texts and make calls, thanks to its 500 minutes. Besides this, the SIM card allows you to browse the internet as it comes with 500 MB of 4G LTE for 30 days. This way, you can be sure that you will be connected for longer.

Apart from these offers, the SIM card allows you to keep your existing phone number, or better still, get a new one at no additional charges. Unlike other SIM cards, you can triple cut it so that it can fit into any device. In fact, it is used as a standard-sized SIM, Micro-sized SIM, or better still, a Nano-sized SIM card.
For you to acquire this card, your credit status will not be checked. Also, there are no activation fees or contracts is involved. However, it is important that you know that the SIM card can only work with devices within the US only.
- Comes with unlimited texts, 500 minutes and 500 MB of data
- Allows you keep your existing phone number
- It is a triple cut SIM card
- No contract
- No activation fee
- Only limited to the US.
2. T-Mobile Prepaid Complete SIM Starter Kit
Are you looking for a SIM card for your unlocked smartwatch? Look no further as the above-mentioned SIM card meets all these needs. Besides this, the SIM kit allows you to choose the plan that suits your budget so that you can enjoy T-Mobile’s Nationwide 4G LTE network.

This SIM card is simply a Nano-SIM and can readily be slipped into the smartwatch, and one will be ready to go. Since it can be used on any T-Mobile smartwatch or any other compatible GSM device, you can be sure that you will enjoy a lot of conveniences using it. By choosing T-Mobile, you can trust that there are no annual contracts, no credit checks, and so on. It is basically very convenient for your smartwatch or smartphone.
- No annual contracts
- No credit checks
- Complete SIM kit allows you choose the plan you please
- Ready to use nano SIM card
- Works with unlocked devices only.
3. $5 SIM Card Preloaded with 1st Month Service No Contract
To start with, this plan comes with a total of 250 units. You will realize that each of these units can be used in any combination, be it data, test, or even talk. This means that you can either enjoy 250 minutes, 250 MB of 4G LTE data, or 250 texts for 30 days.

Since there no contract or credit check involved, you can trust that you will enjoy a lot of conveniences. In addition, you will not be charged any additional fee in terms of the activation fee. Unlike other SIM cards, you will be at liberty to triple cut the SIM card so that it can fit into any device.
Here, you will have the luxury to use it as a standard-sized SIM, micro-sized SIM, or better still a Nano-sized SIM card. Besides this, you will have an option to keep your existing phone number or even get a new one at no additional cost. However, it is important to note that this SIM card can only work with devices within the US.
- Plan comes with 250 units which can be used as a combination or independently
- No contract
- No credit check
- The SIM card is triple cut
- You have the option to keep your existing phone number.
- Service only limited to the US
4. h2o Smart SIM Starter Kit 3-in-1 GSM SIM Card
First and foremost, this SIM card can be triple cut into standard, micro, and nano sizes. This means that it can fit in a wide variety of devices out there. Once you insert it into your device and switch it on, the SIM card will configure your h2o data settings.

The other advantage of this SIM card is that it is 4G enabled. Therefore, you will enjoy fast internet speeds once you insert it into your smartwatch. Also, since no contract is involved, you will enjoy more freedom and convenience. Here, data plans start at only a month or better still; you can consider PAYG (Pay as you go) plans which are relatively low. If you consider PAYG option, you can trust that texts, calls, and even data will be charged depending on how you use it. Other critical factors that will affect the charges here include the roll overbalance, international talk, and texts that you will send to 50+ countries and the 90 expiration date.
For the monthly plans, you will be able to enjoy unlimited plans such as the 4G LTE Data, unlimited texts, unlimited talk, and so on. Unlike other SIM cards, you will be able to enjoy unlimited international talk to about 50+ countries and much more. Finally, you will be able to enjoy a 10% auto-recharge discount once you sign up for the automatic payments.
- The SIM card is triple cut
- It is 4G enabled
- Unlimited data, text and talk nationwide.
- 10% auto recharge discount once you sign up for automatic payments.
- Sometimes, the PAYG plans can be expensive.
5. SpeedTalk Mobile Complete Multi-Purpose Triple Cut SIM Card Starter Kit – No Contract
The above-mentioned SIM card can be sued with unlocked GSM devices. This means that if your smartwatch is unlocked, you will be able to use this SIM card in it. Besides this, you will be able to activate the SIM card with any of SpeedTalk’s carrier plans. The good news is that the process of activation is very simple.

You will also be free to keep your existing phone number or get a new one if you please. This SIM card is triple cut, meaning that you can use it as a standard, micro, or better still a nano card and use it on any of your devices. However, this SIM card can only work optimally if you reside in the US.
- Easy activation process
- The SIM card is triple cut
- No contract
- No credit check
- Can be used on a number of unlocked GSM devices
- Only limited to the US.
6. $5 Smart Watch SIM Card for 4G LTE GSM Smartwatches and Wearables – 30 Day Service
To start with, the SIM card comes with a plan that allows you to enjoy 50 Minutes and 100 SMS. Also, you stand the benefit of enjoying 100MB of data for 30 days. Since the SIM card is 4G enabled, you can be sure that you will enjoy fast internet speeds.

When activating this SIM card you will not incur any additional fees in terms of activation fees. Also, no contract or credit check is involved. Once you activate the SIM card, your US phone number will be auto-generated.
Since the SIM card is triple cut, you will be able to use it as a standard, micro, or nano SIM on any of your devices. Finally, the SIM card will only operate optimally if you reside in the US. Also, roaming is not supported when one is using this SIM card.
- Plan comes with 50 minutes, 100 SMS and 100 MB for 30 days
- Need not activation fee
- No contract
- No credit check
- The SIM card is triple cut
- The service is limited to people living in the US only.
Key Considerations Before Buying A SIM Card For Smartwatch
Have you just bought yourself a smartwatch that allows you to insert a SIM card? The next thing you should be looking for is a SIM card to insert into the smartwatch. After all, you need to be connected to the internet and even make calls using the smartwatch. Since these SIMcards come with different features, you need to know the various features that you should look out for when looking for a SIM card for your smartwatch. Some of these features include:
1. Check the carrier that offers cellular services
One of the most critical things that you should check when buying a SIM card for your smartwatch is the carrier that offers cellular services. From Verizon to T-Mobile there are many carriers to choose from. However, it is important to note that all major mobile carriers in the US such as Verizon, Sprint, T-Mobile usually offer a SIM-only plan that’s compatible with unlocked smartwatch.
Therefore, you have to check if the smartwatch is locked to a particular carrier or not. Thereafter, you will make an informed decision. Ideally, you should consider looking for a Nano-SIM CARD that is open to all devices. This means that you will be able to use them on any device as long as it is unlocked.
Most importantly, you should choose a Wireless plan that is right for you. From being affordable to being available in terms of network connectivity, all these are some of the considerations you should make when choosing a carrier for your SIM card.
2. Is the SIM card compatible with the smartwatch?
Ideally, you should look out for a SIM card that is compatible with your smartwatch. In most instances, nano-SIM is the most preferred one for most smartwatches. If you get a nano-SIM, it should readily work if you already have enough data.
As mentioned above, some smartwatches are normally locked to certain carriers. If IT is locked to a particular carrier, you have to look for a SIM card belonging to that carrier and use it. However, the good news is that your locked smartwatch can be unlocked.
If you want the smartwatch to be unlocked, you can request the carrier involved to unlock it for you. Better still, you can unlock it using a third party. Here, you have to buy a code that is not essentially endorsed by the manufacture and then uses it at your own peril.
Some of the third parties that can help you get started include; Doctor SIM, UnlockBase, and CellUnlocker. If this does now work well for you, consider buying unlock codes for your smartwatch from eBay.
3. Data
Sometimes, you might consider replacing your smartphone with a smartwatch. Here, you will be using the smartwatch to do several things. From streaming music online to uploading videos, there are many things you can do with the smartwatch. However, for you to do all these activities, you need to have sufficient data.
Ideally, you should consider buying 10 GB of data for your line. However, if you are not a heavy internet user, you can consider buying 6GB of data. If you want unlimited data security, be sure that there are SIM card plans that can cater to such needs. Besides, If you do not want to commit to a contract, trust that there is plenty of pay as you go SIM cards as well.
4. Is the SIM card 4G enabled?
There are some SIM cards that are 3G enabled and there is another category that is 4G enabled. If you are looking for a SIM card that will enable you to connect to the internet fast, you should consider choosing the one that is 4G enabled. With 4G connectivity, you will be able to stream videos fast and even upload videos fast. Generally, you will enjoy seamless operations as far as internet browsing is concerned.
5. SIM card plans
You will note that SIM cards come in two plans. There is the contract plan, and there is the PAYG (Pay as you go) plan. You will note that a contract SIM card normally offers a better deal when it comes to data. However, you will be tied down for at least 12 months. On the other hand, PAYG SIM cards are ideal when you do not want to be tied to a contract. However, they are quite expensive overall.
To sum up, some of the SIM cars that can work well with most smartwatches include:
- AT&T Compatible Nano SIM card
- T-Mobile 3-in-1 SIM card starter kit
- Verizon 4G SIM
Besides these SIM cards, you can consider removing your smartphone’s SIM card and then put it into your smartwatch. Thereafter, you will get data instantly.
How To Activate SIM Card For A Smartwatch
Once you have inserted the SIM card into your smartwatch, you need to activate it so that you can be able to make calls and even browse the internet. The following are some of the steps that you should follow:
1. Download app that is compatible with your smartwatch
Before anything else, you should download the application linked with your smartwatch on your mobile. Thereafter, install it so that you can link your smartphone to your smartwatch. As you download this app, you should ensure that it is compatible with your phone’s OS. Once you have made all the necessary confirmations, you can then search the app on the apple app store or the Google Playstore and download it.
2. Contact the mobile carrier provider and ask for a new eSIM Link
To successfully activate the SIM card on your smartwatch, you need to contact the mobile carrier provider. Different SIM cards belonging to different carriers. Since you know the carrier where you bought your SIM card from, you should contact the carrier’s customer support team and then ask for a new eSIM link. Thereafter, copy-pastes the URL you will get on your smartphone.
3. Fill the SIM card information and then put the 6 OTP digits
Once the browser opens, you should proceed to enter the details of the SIM card. When you are through, accept the terms and conditions and then proceed to the next page where you need to put 6 OTP digits, which will essentially be sent to your phone. Once you fill these digits, you will be good to go.
Restart your smartwatch and then complete the process. When activating the SIM card on your smartwatch, you should always ensure that your smartphone is fully charged. This way, you will be able to avert the problem of disrupting the entire process.
Best SIM Card Plans For Smartwatch
When it comes to SIM card plans, there are many options that you can consider. Some of the carriers that offer cellular services come with a contract, while others allow you to pay as you go. You will note that all the leading US mobile carriers normally offer SIM-only plans and family plans. If you do not want to set up an annual contract, you can consider PAYG (Pay as you go) plans. Here are some of the different carriers that you can consider when looking for a SIM card for your smartwatch:
1. AT&T
The good news is that you can now fit the AT&T compatible Nano SIM card into many smartwatches. Besides this, the carrier offers a plethora of plans, depending on the amount of data you need and whether you want multiple lines or not.
When it comes to data-only plans, you can consider paying $14.99 for 250 MB on a 250 MB plan or $10 per 1GB for the 3GB and 5GB plans. In addition, it offers prepaid options that normally expire after 30 days.
2. SpeedTalk Mobile
Besides AT&T, Speed Talk is one of the leading providers of cellular technology. This carrier provides a variety of flexible wireless plans that are aimed at meeting your needs. For data plans, you will need to pay $5 to enjoy 250 MBs.
Better still, you can consider paying $7.50 and enjoy 375 MB per month. Other data plans include $10 for 500 MB per month. Depending on your budget, you can consider the data plan that suits you. All these plans are compatible with all GSM and 4G LTE devices.
3. T-Mobile
By choosing this carrier, you can trust that you will enjoy unlimited texts, talk and even data up to 512Kbps for just $10 per month. If you already have a smartphone that uses the services of this carrier, you can look at the T-Mobile digits which allow you to use the same phone number on a smartwatch. Here, you can expect that you will pay $10 per month for you enjoy this service.
4. Sprint
Apart from the above-mentioned three carriers, Sprint is the other best carrier you can consider when living in the US. With its 4G coverage, you can trust that you will enjoy fast internet speeds. If you already use the services of this carrier, you can go ahead and then add a smartwatch with unlimited talk, data and even texts for an additional $15 per month. However, you can reduce that down to $10 per month in case you set up AutoPay.
5. Verizon
This carrier has 4 unlimited plans that come with different benefits. If you opt for automatic payments you will be able to save $10 per month. This applies to every line on any unlimited plan. However, you need to have a debit card or checking account in order to enjoy this discount. These plans include:
- Start unlimited plan which costs $80 per month. Here, you will be able to enjoy video streaming that is limited to standard definition. However, this plan does not include a hotspot.
- Play More Unlimited which goes for $90 per month allows you to enjoy $15 GB of high speed internet
- Do More Unlimited also allows you to enjoy 15GB of high speed internet per month and allows you to get 50% off an unlimited plan for all your devices. This plan costs $90 per month
- Get More Unlimited plan which allows you enjoy 30 GB of high speed internet on a monthly basis. For you enjoy this plan, you have to part with $100 per month.
Now, you can add your smartwatch to Verizon unlimited plan. Number Share will give you the liberty to call on 5 devices anywhere you go without necessarily having to carry your phone. However, it is important that you sign up for the $5 per month unlimited plan and then choose how much data you need. Generally, compared to other carriers, Verizon normally have better internet speeds and has a wide coverage.
Best SIM Card Supported Smartwatches
Would you like to invest in a smartwatch? There are many models you are likely to find out there. These modes normally come with different features that might fascinate and even confuse you. To be on the safe side, you should know some of the best models you should buy out there in the market. Here are some of the best SIM card supported smartwatches that will ensure that you get the value for your hard-earned money.
1. [Speedtalk SIM Included] Kids Phone Smart Watch
Did you know that kids also like smartwatches? The above is a good reliable device that we can recommend for your kid. You will note that the smartwatch comes with a GPS tracker that helps you know where your child is at a given moment. Besides this feature, the watch is waterproof. Therefore, it will not get damaged even when your child immerses it in water or if it gets rained on.
![[Speedtalk SIM Included] Kids Phone Smart Watch](https://guidancehub.net/wp-content/uploads/2021/02/Speedtalk-SIM-Included-Kids-Phone-Smart-Watch.jpg)
It comes with a touch screen camera and SOS game. Finally, it comes with anti-lost feature and can be a good gift to give your kid during the holidays. Your kid can readily use this watch during outdoor activities or even during a sporting activity.
- Comes with a GPS tracker feature
- The smartwatch is waterproof
- Touchscreen camera
- Ideal as a birthday gift for your kid
- Anti-lost feature
- Only ideal for kids only.
2. Andmei Smartwatch
To start with, this smartwatch allows you to insert a SIM card of any carrier you please. It also comes with a pedometer that allows you to track several things, from your steps to heat. This smartwatch allows you to track your sleep, thereby enabling you to develop better sleeping habits.

Since it is Bluetooth enabled, you will have the liberty to connect to your smartphone and even receive or make calls the way you please. Also, you will be able to synchronize your call look and the phone book. The smartwatch also allows you to control your phone camera, thanks to the remote camera feature. Finally, the smartwatch is ideal for women, men, and kids.
- Ideal for women, men and even kids
- Comes with a pedometer feature
- Helps you to monitor your sleep
- The smartwatch comes with a remote camera feature
- It is not waterproof
3. Vowor 4G Smartwatch for Kids with SIM Card
If you are looking for a smartwatch for your kid with a plethora of features, Vowor 4G Kids smartwatch will not disappoint you. Some of the incredible features this smartwatch has included the face-talk that allows you to make video calls, Wi-Fi LBS GPS tracker, pedometer, geo-fencing, anti-lost, safe zones, HD camera, remote monitoring, and many more. Therefore, this watch can serve as a perfect gift for your kid.

As mentioned above, this smartwatch allows you to video call your child. Apart from enabling you to make video calls, it also allows you to make voice calls. All you need to do is ensure that your SIM card has the plan with both voice and data. Since it is GPS enabled, you will be able to trace your kid with ease. You will also be able to check the history activity footprint of your kid and so on.
This smartwatch is durable as it is made of high-quality material. It also has anti-fall properties. In addition, it is waterproof and therefore won’t get damaged in case it is rained on. Its band strap is made of soft silicone make it comfortable to wear. Finally, it comes with a one year warranty from the manufacturer.
- It is a multifunctional smart-watch
- The smartwatch is waterproof
- Supports both video and audio calls.
- Comes with a GPS feature
- 1 year warranty from the manufacturer
- Made of high quality material, thus more durable.
- Battery does not last for long
4. Apple Watch Series 4 (GPS, 40MM) – Space Gray Aluminum Case with Black Sport Band (Renewed)
One spectacular thing about this watch is that it offers a larger, crisp display that allows you to see more with less bezel. It also has a super-fast performance. The smartwatch also comes with face detection and the electrocardiogram feature, which helps monitor your heart-rate effectively. Therefore, it is ideal even for elderly people or those people suffering from heart-related conditions. This makes it better than the previous models.

In addition, the smartwatch comes with a GPS feature that can help you know the exact location of your loved one at a given time. It is also important to note that its GPS battery life has improved as it can now last for 6 hours, unlike 4 hours, typical of the previous models.
Generally, this phone design alone is a big upgrade, and you can trust that you will enjoy this phone’s functionality, thanks to its big screen. In addition, its numerous health benefits set it apart from its peers out there.
- This smartwatch comes with a GPS feature
- Large screen display
- Super-fast performance
- Face detection and the electrocardiogram feature
- Lightweight design
- Watch face options is very limited in both function and choice
5. Bluetooth Smart Watch SIM Card Slot Camera Smartwatch
Are you looking for a multifunctional smartwatch? The above-mentioned smartwatch will meet all your needs and do so much more. To start with, it comes with a Bluetooth dial, music player, alarm clock, sedentary mind, sleep monitor, calculator remote camera, and many more.

You can readily use this smartwatch during your sporting activities out there. Here, you will have an opportunity to record all the day’s activities, such as the distances that you covered, calories burned, and many more. Since it comes with a sleep monitor, you can be sure that you will have better-sleeping patterns and lead a healthier lifestyle.
Its hands-free speakerphone allows you to enjoy a lot of conveniences as you will not need to lift your cellphone in order to make calls when driving. Therefore, you will be safe as you drive, as you can answer phones and so on. Since the Bluetooth watch has a clear sound, you can be sure that you will hear the other person on the line more clearly.
The other feature that will mesmerize you is that the smartwatch is very easy to use. Here, you will have an easy time connecting it with your Bluetooth phone. It also supports micro-SIM cards, thereby allowing enjoying different cellular services. If you are looking for a gift to give your friend or family member, this smartwatch should top the list. It is truly one of the best smartwatches you should invest in.
- It is a multifunctional smartwatch
- Handsfree speakerphone
- Easy to use
- Ideal to gift someone as a gift.
- Compatible with many devices
- Some claim that the OS of this phone has issues.
6. Samsung Gear S
Samsung is one of those companies that is known to make world-class products. The above-mentioned smartwatch is one of those products that Samsung has made. It comes with a 2-inch Super AMOLED display, which makes the phone more attractive on the outside. Further, the smartwatch comes with a dual-core processor whose capacity is 1 GHz and a RAM of 512 MB. When it comes to the internal memory section, the smartwatch boasts 4 GB of internal storage.

Other features that accompany the phone include GPS tracking. The Wi-Fifths model is also water-resistant and comes with incredible features such as a pedometer, video player, audio player, chronometer, and voice commands.
The smartwatch comes with sensors such as accelerometer sensor, ambient light sensor, and UV sensor. It is important to note that this model only works well with nano-SIM cards. By inserting this SIM card, you will be able to make calls or even send SMS just like you would when using your phone.
- Comes with an attractive screen display
- Fast performance
- No need to carry your phone if you already have this smartwatch
- Easy access as everything is on your wrist
- Multiple sensors such as accelerometer, ambient light sensor and the UV sensor.
- Low screen resolution
Choosing Locked or Unlocked Devices
If you choose a locked smartwatch, you will still be able to make calls and texts, but you will be tied to one carrier only. However, if you choose an unlocked one, you will be at liberty to use SIM cards belonging to different carriers. The flexibility and convenience that comes with unlocked devices are unmatched.
The good news is that your smartwatch can be unlocked by the manufacturer. All you have to do is contact the customer support team of that particular carrier and then let them know that you want to unlock the device. For optimal results, always go for the unlocked smartwatches.
FAQ – Frequently Asked Questions
Are smartwatches carrier locked?
Yes. This is because it normally uses an eSIM in place of a traditional SIM. It is basically locked to a particular carrier and cannot be changed until you contact the carrier’s customer support team to unlock it for you.
Do smartwatches need data plans?
No. You will note that a smartwatch is basically a smart accessory that works for hand in hand with your phone. Depending on the kind of smartwatch you have, you will have the liberty to connect it to your mobile device through Bluetooth, Wi-Fi, and so on. Therefore, this device does not need a service plan of its own.
Can you make a phone call on a smartwatch?
Yes. Depending on your smartwatch, you will be in a position to make calls anytime you please. You just need to ensure that your smartwatch is connected to your phone through Bluetooth or mobile network. Some smartwatches can even hand call remotely and so on.
Which smartwatch can make calls without a phone?
Ticwatch Pro 4G LTE smartwatch is capable of making calls without a phone. This smartwatch comes with cellular functionality and comes with a stylish design.
What can a smartwatch do without a SIM card?
There are several things that a smartwatch can do without a SIM card. For instance, it can help you track and monitor different activities. The SIM card only enables the smartwatch to access the cellular network so that you can make calls and even send messages. Otherwise, without a SIM card, it will work like any other smartwatch.
How do I cancel my T mobile Apple Watch cellular plan?
To cancel your T-Mobile Apple Watch cellular plan, you should go to your iPhone and then open the watch app and then tap on the My Watch tab. Thereafter, tap Cellular and then tap the information icon next to the T-Mobile. Finally, tap T-Mobile plan and you will be good to go.
Do all smartwatches require a phone?
Not really. Smartwatches do not need a phone in order to function. They can work on their own. However, they will not be as functional as they would if you had connected the smartwatch to your phone.
Final Thoughts
From enabling you to make calls to text your friends, there is a lot that you can do with a smartwatch. All you need to do is choose a SIM card that is compatible with your smartwatch, and you are good to go. Since this smartwatch is worn on the wrist, you will be able to do all these activities with utmost precision. You will also be able to remain connected regardless of the activity that you are undertaking. Isn’t this an incredible device!