Customize your device
Starting at $0
A T‑Mobile SIM card connects your device to the T‑Mobile network. Insert this SIM into your new phone and start enjoying all the benefits of our unlimited plans.
Already have a phone you love? Use this SIM card in your unlocked, compatible device to access the T‑Mobile network.
Not sure if your phone is compatible?
Shop for SIM cards for as low as $0 today.
The SIM stores your account information and connects your device to the T‑Mobile network. Your phone may have two options for SIM cards, a digital eSIM or a Physical SIM card. Please select one of the following to continue bringing your own device. To select a digital eSIM, please check your device compatibility below by entering your IMEI number.
Starting at $0
The SIM stores your account information and connects your device to the T‑Mobile network.
Shop for SIM cards for as low as $0 today.
The SIM stores your account information and connects your device to the T‑Mobile network.
$7.25 $0.00/month for 24 months with promotion
Due today: $0.00 + tax & other charges
Full price: $174.00 + tax
Plus $35 $0 Device Connection Charge Online only
Plus $35 Device Connection Charge
Plus $35 $0 Device Connection Charge
or select Ship to me in cart to have your order shipped.
In stock, estimated ship date: August 30 - September 5 or get it faster by selecting Store Pickup on available items at checkout.
Learn more
Learn more
You can purchase a maximum of 5 lines in a single transaction.
You can purchase a maximum of 5 lines in a single transaction.
Are you a new or existing customer?
Welcome to T-Mobile (new customer)
If you're an existing customer, please
Adding a line to your account
Upgrade for undefined
model | phoneNumber
jumpEligibleText
Phone number options
Transfer a number from another carrier or we can provide a new number
Phone number options
Transfer a number from another carrier or we can provide a new number.
This number is eligible
pillTemplate Transferring: phoneNumberTemplate
This number will remain active on your current device. Contact us to transfer the number to
This number will remain active on your current device. Your mobile expert will help you transfer your number
to
Getting a new number
Eligible trade-in device
marketingName | capacity
Device Condition
selectedDeviceCondition
Estimated one-time trade-in credit: $oneTimeCredit
In deviceCondition condition
Outstanding trade-in balance: $installmentBalance
This amount must be paid before completing your order. The remaining amount will be added to your cart.
Want to trade in a device?
Have a damaged device? You may still qualify for a promotion.
Skip trade-in
Eligible trade-in device
marketingName | capacity
firstName phoneNumber
Device Condition
selectedDeviceCondition
Estimated one-time trade-in credit: $oneTimeCredit
In deviceCondition condition
Outstanding trade-in balance: $installmentBalance
This amount must be paid before completing your order. The remaining amount will be added to your cart.
Want to trade in?
firstName’s marketingName | capacity
Have a damaged device? You may still qualify for a promotion.
To continue, we need more information to verify your trade-in. Please call 1-800-
Trade-in skipped
Select a trade-in device
Choose a payment option
Find out what you’ll pay with no impact to your credit score.
with promotion
Starting at
If you select to pay monthly and cancel wireless service, the remaining balance on the device becomes due. For well-qualified buyers, 0% APR. Qualifying service required.
You’re protected
Good news! Your current title plan will transfer to your new device.
You’re protected
Good news! Your new phone will be protected. Your title plan will transfer to your new device.
priceDifference/month from current protection plan
priceDifference/month from current protection plan
New price: price/month + tax
Enjoy
Renews monthly until canceled. You can cancel at any time via the T-Life app.
Enjoy
73% of people have cracked the front screen of their phone
Did you know?
You can change your protection plan anytime by logging into your account
Why has the price for my protection plan changed?
You updated your protection plan to cover another device which has resulted in a price change.
To change your protection plan, log in and visit My account.
( mi)
Want to get it sooner?
Customers also bought
Loading
Loading
Loading
Loading
Loading
Loading
Loading
Loading reviews
Reviews
Summary of Reviews
The product appears to have significant performance and reliability issues, with frequent malfunctions, inaccurate tracking, and compatibility problems with the companion app. Many reviewers strongly ...
Most Helpful Favorable Review
5 out of 5 stars.
Love this watch
a year ago
My 11 year-old has this and it's great for us to stay in touch. The battery life is great, it needs to be charged about every 3 days. I love that I can keep track of him and he also can get a hold of his family and friends when needed via text or call. He uses the audio feature a lot to send quick voice messages when needed. This has been a game changer for me as a parent and a great segway for him to learn responsibility and care for a device before he moves to a phone in the next few years.
185 people found this helpful
Show Reviews:
Most Helpful Critical Review
1 out of 5 stars.
Worthless
a year ago
The watch was designed for parents and kids connection. Regrettably, the app for the kids watch is not yet ready for use. It was advertised that the watch can contact other lines with the main line's permission. However, the feature seems to be non-functional as neither I nor the store staff were able to add another line to the watch. This limits the watch's functionality to only contacting yourself or the main line, rendering it inefficient for its intended purpose.
353 people found this helpful
Show Reviews:
Filter Reviews
Rating
1 to 8 of 138 Reviews
1 – 8 of 138 Reviews
Most Relevant
Review 1
Votes 6
1 out of 5 stars.
Don’t ever get it
5 months ago
It’s been the worst experience with this trashy watch first it stopped working after four months then we exchanged it for 20 box then the exchanged one is old and refurbished it turned off on us every day so we have to turn it back on each time this issue happens then I asked for another exchange and guess what they sent us a very used one scratch every where and not even clean plus am stuck with it until I pay the full amount of 174 for just piece of trash
Am advising anyone who wants a kids watch not to buy their watch it’s useless and doesn’t work for any other carrier
If I have a voice of putting 0 stars I would
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
4 months ago
T-Mobile US
Hi, we'll make sure you have a working device in good condition so you can use and enjoy your service as intended. Please email us at: [email protected] so we can find an alternative solution to your exchange issues.
Land O Lakes Fl
Review 1
Votes 9
1 out of 5 stars.
Used to be great !!!
5 months ago
This watch was great until they did away with the Sync Up App. I had no problem adding contacts before, now, I had to replace a broken watch, and I can't add ANY contacts that use an Apple device. Customer service said there is no issue, but I assure you, I get an error message with every single contact who owns an apple device. I'm VERY disappointed they ruined a really good product by switching App Platforms!!! I will be looking at outside providers for other options.
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
4 months ago
T-Mobile US
Adding contacts won't depend on the type of device. Please make sure when using the T-Life app, you are using the same T-Mobile ID when you initially paired your devices. Also verify you are running the most up to date app version. You can follow the steps outlined here to add contacts: https://www.t-mobile.com/support/smartwatches/t-mobile. This will be under the Important Features section on this page.
Review 1
Votes 116
1 out of 5 stars.
We Need the SyncUp Kids App Back Please
8 months ago
This watch has potential, but removing the dedicated SyncUP Kids app and bundling with a broader app like T-Mobile Life dilutes its focus and functionality. Parents need a tool specifically designed to provide timely, reliable alerts about their child’s safety—not something buried in a generalized app. A dedicated SyncUp app ensures clarity, efficiency, and peace of mind, which is crucial for a product like this.
This change feels like a step backward, ignoring the needs of the very audience the app was designed to serve. Please reconsider bringing back a standalone app for the smartwatch to preserve its full potential and ease of use for families.
No, I do not recommend this product.
Helpful?
South San Francisco, CA
Review 1
Votes 80
1 out of 5 stars.
Terrible, charger non functional after 1 month
10 months ago
We had a gen1 SyncUp, and it was fine. But Tmobile bricked it when a rep accidentally transferred the number off of it (wrong line) and tried to revert - it couldn't handle the reset/revert and we had to scrap the entire device. It took many calls, but Tmo support finally replaced the device (that Tmo broke).
Unfortunately the replacement was a gen2. It actually has more features on paper - my kid was happy even though they lost all their photos on the gen1. But less than a month later, it won't charge. I've wasted so many hours with this debacle, I'm not looking forward to this next round. Do yourself a favor and completely avoid this line of watches.
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
9 months ago
SyncUP KIDS Watch Product Team
Thank you for reaching out, and we truly appreciate your loyalty as a customer for over 3 years. Here are some troubleshooting steps to help resolve the charging issue:
Ensure the charging dock is properly connected to a power source (USB or wall adapter).
Check that the watch screen shows it's charging.
Clean the contact pins on both the watch and dock with a diluted alcohol solution (2 parts water to 1 part alcohol). Then, place the watch on the dock for at least 20 minutes to see if charging begins.
Verify the pogo pins on the charging dock aren’t recessed. Place the watch on the dock for 20 minutes and check if it starts charging.
If the issue persists, please visit a nearby T-Mobile store to rule out a defective charging dock. If the watch still doesn’t charge on another dock, it may need to be exchanged.
Tennessee
Review 1
Votes 44
1 out of 5 stars.
Worthless without the charger
9 months ago
If I could give this zero stars, I would. The charger broke within two months. We thought at first it was the phone, not taking a charge. TMobile quickly replaced the phone-not the watchband, not the charger, just the phone. Same thing happened. Phone wouldn't charge. Turned out it was the charger. Called TMobile. THERE IS NO REPLACEMENT CHARGER. They said the charger is not covered by the warranty and referred me to Walmart and Amazon, neither one of which had the five-pin charger this watch requires. I either want a whole new box, with a new charger in it, or my money back, because this is worthless without the charger. WORTHLESS. I've been robbed.
No, I do not recommend this product.
Helpful?
Anonymous
Chattanooga TN
Review 1
Votes 428
1 out of 5 stars.
Worthless
a year ago
The watch was designed for parents and kids connection. Regrettably, the app for the kids watch is not yet ready for use. It was advertised that the watch can contact other lines with the main line's permission. However, the feature seems to be non-functional as neither I nor the store staff were able to add another line to the watch. This limits the watch's functionality to only contacting yourself or the main line, rendering it inefficient for its intended purpose.
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
11 months ago
SyncUP KIDS Watch Product Team
We understand the importance of keeping you and your child connected to your family and friends. We noticed that you have returned your SyncUP KIDS Watch Version 1, and we appreciate the feedback. We do have a SyncUP KIDS Watch 2 out with a new companion app – the T Life app. Adding contacts and sharing the watch’s location with Guardian contacts can be done from both the T Life and the SyncUP KIDS apps. If you are still interested in the latest watch, please visit one of your nearest T-Mobile Stores: https://www.t-mobile.com/stores/locator.
Michigan
Review 1
Votes 8
1 out of 5 stars.
Defective out of the box. Confirmed by Support
6 months ago
Got this for my 4yo so that she could reach us in an emergency or we could either reach her or if necessary track her. The problems with this started out of the box. The big issue was it kept factory resetting itself. In it's factory reset state it asks you to download the SyncUp Kids app and then offers to pair. There is no way to make a call or track the watch from the app when it's in this state. You need to repair it. Tmobile support confirmed this watch was defective out of the box. Instead of authorizing a device swap remembering how many other similar issues were in these reviews I just requested a return.
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
4 months ago
T-Mobile US
Thank you for the review and sharing your experience with this device, and we're always looking to improve the experience on the Watch and T-Life interface. If you have any questions or still need support on your device or return, email us at [email protected].
Review 1
Votes 57
2 out of 5 stars.
T-life app it's the worst
10 months ago
Setting up this watch is a nightmare. We used to have the old watch, which it took many T-Mobile employees to get it to work, but after 3 yrs the watch stopped working. It did its job. We decided to get a new watch, "much better" according to T-Mobile, it's still awful. Getting rid off the Sync Up watch app is the worst decision. The T Life app doesn't work properly, it won't allow us to add contacts or edit anything as it keeps saying "something went wrong, try again". I'm about to cancel, pay off the watch and throw it away. It causes more frustration than good. DO NOT RECOMMEND
No, I do not recommend this product.
Helpful?
Response from T-Mobile USA:
9 months ago
SyncUP KIDS Watch Product Team
We appreciate your feedback. The new T-Life app supports 100% all of the SyncUP KIDS Watch features that were previously available via SyncUP KIDS app. To manage contacts, please download the latest version of the T-Life app, go to the "Connect" tab, select "People" section, and log in with your T-Mobile ID associated with your SyncUP KIDS Watch. Then selects a watch and go to Watch Settings to manage contacts. If you continue to experience issues with any features, please shake your phone to send us a bug report. This will help us gather the necessary information to better understand and resolve the issue.
1 – 8 of 138 Reviews
Key features
320 x 360 pixels
1.41'' AMOLED
2nd Camera 8MP, Auto-Focus with Flash
Selfie Camera 5MP
8 Hours Talk Time
10 Days Standby Time
Other features
- Call & Text
- Location Tracking
- Virtual Boundaries
- Durable & Water Resistant
- Video Calling
- New Flashlight
- Bluetooth Earbuds Support
- Increased Memory
- Faster, More Energy-Efficient Chipset
- New Foldable Charging Stand
- New Companion App
- 2 Additional Games (Memory, Math)
- International Roaming Including Mexico/Canada
What’s in the box
T-Mobile ® SyncUP KIDS™ Watch 2- New Bands
- Charging Cable
- New Foldable Charging Stand
Additional spec details
Battery Description
510 mAh
Ports
Five Prong Pogo Pin
Connectivity
802.11 a/b/g/n/ac, Bluetooth 5.1
Processor
Qualcomm SDW5100
Operating System
Android 11 For Watch
Ram
2 GB
Maximum Expandable Memory
0 GB
Wireless Network Technology Generations
4G LTE
Supported Email Platforms
N/A
WEA Capable
false
Mobile Hotspot Capable
false
Frequency
LTE: 1, 2, 3, 4, 8, 12, 66, 71
Weight
1.26 Ounces
Length
0.58 Inches
Height
1.8 Inches
Width
1.57 Inches
