Amazfit T-Rex

Amazfit T-RexDual Solar, Ultra 2, 3 Pro & T-Rex 3 Compared

Last updated

Tough GPS watches with offline maps, a flashlight and weeks of battery, for far less than a Garmin Fenix. The T-Rex Dual Solar is the new top model, and Amazfit calls it the first AMOLED smartwatch with solar charging on both sides.
Released
Sep 22, 2026
Price
$649.99
BATTERY
17 to 30 days typical
When to buy
Available now
SEP 22 · LATEST ON AMAZFIT T-REX
Amazfit's new T-Rex charges from the sun on its back

The $649.99 T-Rex Dual Solar adds a second, larger solar panel on the caseback, and Amazfit rates it for up to 51 days with daily sun.

Read the story →

Best for

Battery life.
Weeks between charges, and the Dual Solar adds sun on both sides.Confirmed: us.amazfit.com
Outdoor adventure.
Titanium, sapphire, a flashlight and a cold-weather mode for long trips.Confirmed: us.amazfit.com
Navigation.
Preloaded maps, route planning and rerouting on the watch.Confirmed: us.amazfit.com

Comparison

Compare watches

How it compares

Cost over 3 years

$399.99

Device price plus up to three years of optional subscription.

Weight

52g

Grams on your wrist. Lower is lighter.

Battery life

25 days

How long it lasts on its own, away from a charger.

Cost over 3 years

Samsung Galaxy Watch 8
$349
Pixel Watch 4
$349 → $709
Samsung Galaxy Watch 9
$379.99
Apple Watch Series 11
$399
Apple Watch Series 12
$399

DeviceOptional subscription

Case only, without a strap, as the maker quotes it.

Battery life can vary based on usage, settings and firmware version.

If not this one

Amazfit T-Rex is our pick for outdoor adventure and navigation. Where it does not lead, here is what does, and why you would switch.

  • If you mostly runGarmin Forerunner

    This is Garmin's GPS running-watch line.

    $249.99
  • If you want the broadest health pictureSamsung Galaxy Watch 9

    Samsung Health coaches you from your wrist.

    $379.99
  • If workouts are the pointApple Watch Series 12

    Workout Buddy now works on the watch when your iPhone is not nearby.

    $399

Most paired with

Everything it works with

What the Amazfit T-Rex works with

A smartwatch that works with iPhone and Android.

Does the Amazfit T-Rex work with Android?

Works

The T-Rex Dual Solar works with an Android phone running Android 7.0 or later, through the Zepp app.

What you need
Android 7.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

Does the Amazfit T-Rex work with iPhone?

Works

The T-Rex Dual Solar works with an iPhone running iOS 15.0 or later, through the Zepp app.

What you need
iOS 15.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

Quick answers

All FAQs

Quick answers

How much does the Amazfit T-Rex Dual Solar cost?
$649.99 at Amazfit's US store.
Which T-Rex has the longest battery life?
Without sun, the T-Rex Ultra 2: up to 30 days of typical use, against 25 days for the Dual Solar and the 48mm T-Rex 3 Pro. With 3 hours of sun a day on its back, the Dual Solar is rated up to 51 days.
Which phones work with the T-Rex Dual Solar?
Android 7.0 and above and iOS 15.0 and above, through the Zepp app.

Get Amazfit T-Rex updates

Email me when there's news.

Works with

Works

The T-Rex Dual Solar works with an Android phone running Android 7.0 or later, through the Zepp app.

What you need
Android 7.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

Works

Apple Health is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app on an iPhone.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.

Last checked 2026-10-02.

Works

Google Fit is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app on Android.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.

Last checked 2026-10-02.

Works

The T-Rex Dual Solar works with an iPhone running iOS 15.0 or later, through the Zepp app.

What you need
iOS 15.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

WorksWorked out from the maker's minimum

It works with every iPhone that runs iOS 15.0 or later, from the iPhone 6s on.

  • iPhone 18 Pro and iPhone 18 Pro Max: yes, on iOS 15.0 or later
  • iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air and iPhone 17e: yes, on iOS 15.0 or later
  • iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max and iPhone 16e: yes, on iOS 15.0 or later
  • iPhone 15, iPhone 15 Plus, iPhone 15 Pro and iPhone 15 Pro Max: yes, on iOS 15.0 or later
  • iPhone 14, iPhone 14 Plus, iPhone 14 Pro and iPhone 14 Pro Max: yes, on iOS 15.0 or later
  • iPhone 13 mini, iPhone 13, iPhone 13 Pro and iPhone 13 Pro Max: yes, on iOS 15.0 or later
  • iPhone 12 mini, iPhone 12, iPhone 12 Pro and iPhone 12 Pro Max: yes, on iOS 15.0 or later
  • iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max: yes, on iOS 15.0 or later
  • iPhone XR, iPhone XS, iPhone XS Max and iPhone X: yes, on iOS 15.0 or later
  • iPhone 8 and iPhone 8 Plus: yes, on iOS 15.0 or later
  • iPhone 7 and iPhone 7 Plus: yes, on iOS 15.0 or later
  • iPhone 6s and iPhone 6s Plus: yes, on iOS 15.0 or later
  • iPhone SE (2nd generation), iPhone SE (3rd generation) and iPhone SE (1st generation): yes, on iOS 15.0 or later
  • iPhone 17 Pro: yes, on iOS 15.0 or later
  • iPhone 17 Pro Max: yes, on iOS 15.0 or later
  • iPhone Air: yes, on iOS 15.0 or later
  • Any iPhone not listed: no, it cannot run that iOS version

Worked out from the maker's minimum ("iOS 15.0 or later") and Apple's list of the iPhones that run it, not a separate test. See the sources.

See details and sources (7)

Last checked 2026-10-02.

Works

Komoot is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

Strava is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

TrainingPeaks is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Most paired with

Does the Amazfit T-Rex work with Android?

Works

The T-Rex Dual Solar works with an Android phone running Android 7.0 or later, through the Zepp app.

What you need
Android 7.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

Does the Amazfit T-Rex work with iPhone?

Works

The T-Rex Dual Solar works with an iPhone running iOS 15.0 or later, through the Zepp app.

What you need
iOS 15.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

What you need

Does the Amazfit T-Rex work with Android?

Works

The T-Rex Dual Solar works with an Android phone running Android 7.0 or later, through the Zepp app.

What you need
Android 7.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

Does the Amazfit T-Rex work with iPhone?

Works

The T-Rex Dual Solar works with an iPhone running iOS 15.0 or later, through the Zepp app.

What you need
iOS 15.0 or later and the Zepp app.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter

Last checked 2026-10-02.

How it works

Works

Yes for compatible action cameras, which the watch can control.

What you need
A compatible action camera.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter
    Smartwatch (including standard strap), Magnetic charging head (no cable), Instruction manual

Last checked 2026-10-02.

Works

Takes 26 mm quick-release straps.

What you need
26 mm strap.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus
    Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter
    Smartwatch (including standard strap), Magnetic charging head (no cable), Instruction manual

Last checked 2026-10-02.

Works

Charges on Amazfit's magnetic charging head. No cable comes in the box, so you use your own USB-C cable.

What you need
Your own USB-C cable.
See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Smartwatch (including standard strap), Magnetic charging head (no cable), Instruction manual

Last checked 2026-10-02.

Works

Pairs Bluetooth workout sensors such as a chest heart rate strap, power meters and cycling speed and cadence sensors.

See details and sources (1)
  • Amazfit: Amazfit T-Rex Dual SolarFrom the maker or platform · checked 2026-10-02
    Connection to Peripheral Workout Devices: Heart rate belt Running power meter Cycling power meter Cycling speedometer Cycling cadence meter
    Smartwatch (including standard strap), Magnetic charging head (no cable), Instruction manual

Last checked 2026-10-02.

Where to buy

We may earn a commission when you buy through these links.

Returns and warranty

Returns

30-day returns· the clock starts the day you buy it

  • You pay return shipping
    You pay return shipping up front, and you carry the risk if it is lost or damaged on the way.
    Original shipping, gift wrap and taxes are not refunded.
  • Up to 15% restocking fee

    If you send it back without a return approval or without all parts, Amazfit may refuse it or charge a restocking fee of 15% of the price, or the value of the missing accessories if that is higher.

  • Send it back like new
    Any reason, within 30 days of purchase, with a return approval (RMA).
    The item must be in the same physical condition as when bought (not broken or damaged), with all accessories, free gifts and the original packaging.
  • How you get your money back

    Paid within 4 weeks after Amazfit receives the product.

Warranty

1-year warranty· starts the day you buy it

Covered

  • Covered

    The device will work substantially as Amazfit's specifications or product documents say, under normal use.

  • Defects in material or workmanship under normal use

Not covered

  • Water damage

    Spillage of food or liquid is named as an accident that is not covered. Water resistance is not addressed in words.

  • Normal wear and aging

    Normal wear and tear.

  • Accidents and misuse

    Defects or damage caused by misuse or accident, including collision, fire, flood and earthquake.

  • Repairs by other shops

    Improper or unauthorized repair, modification or alteration.

  • Used or resold products, commercial use, and use for medical purposes
  • How it gets fixed
    Amazfit chooses to repair, replace (new or remanufactured) or update software; it may refund the price if replacing is not reasonable.
    You pay to ship the device to Amazfit; Amazfit pays to ship the repaired or replacement device back when the claim is valid. The fix is covered for the rest of the warranty or 90 days, whichever is greater.

Good to know

  • Orders paid with Buy with Prime on us.amazfit.com

    These returns are started from your Amazon account and follow Buy with Prime return rules, with drop-off options.

  • Holidays

    Orders placed in November and December can be returned through January 31 of the next year, or 45 days, whichever is longer.

Price compared to others

Price compared to others

Samsung Galaxy Watch 8
$349
Pixel Watch 4
$349
Samsung Galaxy Watch 9
$379.99
Apple Watch Series 11
$399
Apple Watch Series 12
$399
Pixel Watch 5
$399
Available nowApple Watch Series 12UnknownGuide News
Available nowApple Watch Ultra 4UnknownGuide News
Available nowPixel Watch 5$399Guide News
Available nowSamsung Galaxy Watch 9$349+Guide News

Frequently asked questions

Questions about Amazfit T-Rex

Top questions

How much does the Amazfit T-Rex Dual Solar cost?
$649.99 at Amazfit's US store.
Which T-Rex has the longest battery life?
Without sun, the T-Rex Ultra 2: up to 30 days of typical use, against 25 days for the Dual Solar and the 48mm T-Rex 3 Pro. With 3 hours of sun a day on its back, the Dual Solar is rated up to 51 days.
Which phones work with the T-Rex Dual Solar?
Android 7.0 and above and iOS 15.0 and above, through the Zepp app.
How long does the T-Rex Dual Solar battery last?
Amazfit rates it at up to 25 days of typical use. With 3 hours of strong sun a day it rates up to 34 days through the front panel and up to 51 days through the back.
Does the T-Rex Dual Solar really charge from the sun?
Yes. It collects solar energy through the AMOLED display and through a glass-ceramic back plate, and Amazfit says the back has more than twice the active charging area of the front. Solar slows the drain; it does not replace the charger.
What is the difference between the T-Rex Dual Solar and the T-Rex Ultra 2?
The Dual Solar charges from the sun on both sides and has a 1.32-inch screen. The Ultra 2 has no solar charging, a bigger 1.5-inch screen, a larger 870 mAh battery and up to 30 days of typical use against 25. The Dual Solar is $649.99 and the Ultra 2 is $549.99.
Can a T-Rex take phone calls?
The T-Rex Dual Solar, Ultra 2 and 3 Pro can. Each has a microphone and speaker for Bluetooth calls through your phone. The T-Rex 3 has no built-in speaker.
Do T-Rex watches have offline maps?
Yes. The Dual Solar and Ultra 2 come with base maps preloaded and add downloadable contour and ski resort maps, turn-by-turn navigation, POI search, route planning and auto rerouting. The 3 Pro downloads its base, contour and ski resort maps.
What is the warranty on an Amazfit T-Rex?
One year from the date of original purchase, for watches sold in the United States through Amazfit's official online store.
Can I return a T-Rex bought from Amazfit?
Yes. You have 30 days from purchase on us.amazfit.com to ask for a full refund. The watch must be undamaged and come back with all its accessories and original packaging, and you pay return shipping. Orders placed in November and December can be returned through January 31 of the following year, or 45 days, whichever is longer.

Sizing and fit

What sizes does it come in?
51.4 mm case, 14.5 mm thick (16.9 mm with heart rate sensor); Grade 5 titanium bezel, buttons and back; fiber-reinforced polymer middle frame. Source: Amazfit

Price and models

When did the Amazfit T-Rex come out?
It went on sale September 22, 2026. Source: iDevice
Is there a newer one?
No. The Amazfit T-Rex is the current model. Source: iDevice
How much does the Amazfit T-Rex cost?
List price: $649.99. Current price we last read at Amazfit: $649.99, October 2, 2026. Source: Amazfit

Returns and warranty

How long do I have to return it?
30-day returns The clock starts the day you buy it. Source: Amazfit
Is there a restocking fee?
Up to 15% restocking fee If you send it back without a return approval or without all parts, Amazfit may refuse it or charge a restocking fee of 15% of the price, or the value of the missing accessories if that is higher. Source: Amazfit
Who pays return shipping?
You pay return shipping You pay return shipping up front, and you carry the risk if it is lost or damaged on the way. Original shipping, gift wrap and taxes are not refunded. Source: Amazfit
Can I return it if I opened or wore it?
Send it back like new Any reason, within 30 days of purchase, with a return approval (RMA). The item must be in the same physical condition as when bought (not broken or damaged), with all accessories, free gifts and the original packaging. Source: Amazfit
How do I get my money back?
How you get your money back Paid within 4 weeks after Amazfit receives the product. Source: Amazfit
How long is the warranty?
1-year warranty Starts the day you buy it. Source: Amazfit
Is water damage covered?
Water damage not covered Spillage of food or liquid is named as an accident that is not covered. Water resistance is not addressed in words. Source: Amazfit
Is the battery covered?
Battery rules: not stated by Amazfit Source: Amazfit

Works with

Does the Amazfit T-Rex work with Google Fit?
Yes. Google Fit is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app on Android. Works Source: Amazfit
Does the Amazfit T-Rex work with iPhone?
Yes. The T-Rex Dual Solar works with an iPhone running iOS 15.0 or later, through the Zepp app. Works Source: Amazfit
Does the Amazfit T-Rex work with Komoot?
Yes. Komoot is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app. Works Source: Amazfit
How does the Amazfit T-Rex handle sensors and accessories?
Pairs Bluetooth workout sensors such as a chest heart rate strap, power meters and cycling speed and cadence sensors. Works Source: Amazfit
Does the Amazfit T-Rex work with Strava?
Yes. Strava is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app. Works Source: Amazfit
Does the Amazfit T-Rex work with TrainingPeaks?
Yes. TrainingPeaks is on the list of apps the T-Rex Dual Solar syncs to through the Zepp app. Works Source: Amazfit

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