Amazfit T-Rex 3 Pro

Amazfit T-Rex 3 ProPrice, Specs & Sizes

Last updated

What it costs now, both sizes, and what it adds over the T-Rex 3.
Released
Sep 5, 2025
Price
$399.99
When to buy
Amazfit T-Rex Ultra 2 is out 
SEP 22 · LATEST ON AMAZFIT T-REX 3 PRO
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 →

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.

Most paired with

Everything it works with

What the Amazfit T-Rex 3 Pro works with

A smartwatch that works with iPhone and Android.

Does the Amazfit T-Rex 3 Pro work with Android?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Does the Amazfit T-Rex 3 Pro work with iPhone?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Quick answers

All FAQs

Quick answers

How much does the T-Rex 3 Pro cost?
$399.99 at Amazfit's US store, in either size.
Which phones work with the T-Rex 3 Pro?
Android 7.0 and above and iOS 15.0 and above.
What sizes does the T-Rex 3 Pro come in?
48mm and 44mm. The 48mm has a 1.5-inch screen and the 44mm a 1.32-inch screen, both AMOLED at up to 3,000 nits.

Get Amazfit T-Rex 3 Pro updates

Email me when there's news.

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

Works with

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

Apple Health is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app on an iPhone.

See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

Google Fit is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app on Android.

See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

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 3 Pro syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

Strava is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Works

TrainingPeaks is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app.

See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Most paired with

Does the Amazfit T-Rex 3 Pro work with Android?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Does the Amazfit T-Rex 3 Pro work with iPhone?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

What you need

Does the Amazfit T-Rex 3 Pro work with Android?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

Last checked 2026-10-02.

Does the Amazfit T-Rex 3 Pro work with iPhone?

Works

The T-Rex 3 Pro 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 3 ProFrom the maker or platform · checked 2026-10-02
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus

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 3 ProFrom the maker or platform · checked 2026-10-02
    Connect to an action camera, heart rate belt, cadence meter, power meter, thermometer, speedometer, and more

Last checked 2026-10-02.

Works

Takes 22 mm (48mm) or 20 mm (44mm) straps, depending on the case size.

What you need
22 mm (48mm) or 20 mm (44mm) strap.
See details and sources (1)
  • Amazfit: Amazfit T-Rex 3 ProFrom the maker or platform · checked 2026-10-02
    Supported Devices: Android 7.0 and above, iOS 15.0 and above
    Strava, Relive, Runkeeper, adidas Running, komoot, TrainingPeaks, Apple Health, Google Fit, intervals.icu, Treinus
    Connect to an action camera, heart rate belt, cadence meter, power meter, thermometer, speedometer, and more
    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 3 ProFrom 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 3 ProFrom the maker or platform · checked 2026-10-02
    Connect to an action camera, heart rate belt, cadence meter, power meter, thermometer, speedometer, and more
    Smartwatch (including standard strap) Magnetic charging head (no cable) Instruction manual

Last checked 2026-10-02.

At a glance

Amazfit T-Rex 3 ProTHIS PRODUCTAmazfit T-Rex 3 ProAmazfit T-Rex 3COMPARE WITHAmazfit T-Rex 3
Display
1.5Confirmed: Amazfit · Oct 2, 2026in AMOLED (48mm) or 1.32 in AMOLED (44mm), up to 3,000 nits, sapphire glass
1.5Confirmed: Amazfit · Oct 2, 2026in AMOLED, 480 x 480, up to 2,000 nits, Gorilla Glass
Battery
Typical use: up to 25 days (48mm), 17 days (44mm)Confirmed: Amazfit · Oct 2, 2026accurate GPS: up to 38 hrs (48mm), 26 hrs (44mm)
Typical use: up to 27 daysConfirmed: Amazfit · Oct 2, 2026accurate GPS: up to 42 hrs; GPS max: up to 180 hrs
Works with
iPhone (iOS 15 and above) and Android (7.0 and above), Zepp appConfirmed: Amazfit · Oct 2, 2026
iPhone (iOS 14 and above) and Android (7.0 and above), Zepp appConfirmed: Amazfit · Oct 2, 2026
Water resistance
10 ATMConfirmed: Amazfit · Oct 2, 2026freediving and recreational scuba to 45 m
10 ATMConfirmed: Amazfit · Oct 2, 2026certified for freediving to 147 ft (45 m)
Price
From $399.99
From $279.99
Weight
52g (48mm) or 46.8g (44mm), without strapConfirmed: Amazfit · Oct 2, 2026
68.3gConfirmed: Amazfit · Oct 2, 2026without strap
Materials
48 x 48 x 14 mm or 44.8 x 44.8 x 13.2 mmConfirmed: Amazfit · Oct 2, 2026Grade 5 titanium bezel and buttons; fiber-reinforced polymer case
48.5 x 48.5 x 13.75 mmConfirmed: Amazfit · Oct 2, 2026stainless steel bezel, polymer middle frame
More specs
Connectivity
6 satellite systemsConfirmed: Amazfit · Oct 2, 2026Bluetooth 5.2; Wi-Fi; speaker and mic; flashlight; downloadable maps
Dual-band GPS, 6 satellite systemsConfirmed: Amazfit · Oct 2, 2026Bluetooth 5.2; Wi-Fi; microphone (no speaker); offline maps

Buying decision

Amazfit T-Rex 3 Pro
No rush
Amazfit

Amazfit T-Rex 3 Pro

Newer model is out

Amazfit T-Rex is already out, so this one is being replaced.

What would make this a buy?

A much stronger price advantage over Amazfit T-Rex would change this recommendation.

About Amazfit

Amazfit, from Zepp Health, makes affordable smartwatches and fitness trackers with long battery life.

Visit Amazfit
More from Amazfit we cover
Amazfit Helio RingAmazfit T-Rex 3T-Rex Dual SolarAmazfit T-Rex Ultra 2

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.

What's in the box

What comes in the box with the Amazfit T-Rex 3 Pro?

Here is what you get when you open it.

T-Rex 3 Pro with standard strap
Magnetic charging head
Instruction manual

From Amazfit. Checked Oct 2, 2026.

When to buy

Amazfit T-Rex Ultra 2 is out

See the Amazfit T-Rex Ultra 2 →

Current offers

Amazfit
$399.99
—
Buy
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 3 Pro

Top questions

How much does the T-Rex 3 Pro cost?
$399.99 at Amazfit's US store, in either size.
Which phones work with the T-Rex 3 Pro?
Android 7.0 and above and iOS 15.0 and above.
What sizes does the T-Rex 3 Pro come in?
48mm and 44mm. The 48mm has a 1.5-inch screen and the 44mm a 1.32-inch screen, both AMOLED at up to 3,000 nits.
How long does the T-Rex 3 Pro battery last?
Up to 25 days of typical use on the 48mm and 17 days on the 44mm. In the accurate GPS mode, up to 38 hours on the 48mm and 26 hours on the 44mm.
How heavy is the T-Rex 3 Pro?
52g for the 48mm and 46.8g for the 44mm, without the strap.
Can I dive with the T-Rex 3 Pro?
Yes. It is rated 10 ATM and certified for freediving and recreational scuba diving to 45 meters.
Does the T-Rex 3 Pro have a flashlight?
Yes. It reaches 200 lux, or 300 lux in Boost Mode.

Using it

What does it cost?
It costs $399.99. That is the list price. Source: Amazfit
Does it have GPS?
Yes, it has its own GPS. It works without your phone. Source: Amazfit
How big is the screen?
The screen measures 1.5 inches. Source: Amazfit
How heavy is it?
It weighs 46.8g to 52g. The weight varies by size or finish. Source: Amazfit
How does it connect?
It connects over Wi-Fi. Source: Amazfit
What kind of screen is it?
It is an AMOLED screen. The pixels light themselves, so blacks are deep and it can dim to almost nothing. Source: Amazfit

Sizing and fit

What sizes does it come in?
48 x 48 x 14 mm or 44.8 x 44.8 x 13.2 mm; Grade 5 titanium bezel and buttons; fiber-reinforced polymer case. Source: Amazfit

Water

Can it get wet (shower, pool, swimming)?
Yes, you can shower and swim in it. It is rated to 45m, and for snorkelling. Source: Amazfit

Price and models

When did the Amazfit T-Rex 3 Pro come out?
It went on sale September 5, 2025. Source: iDevice
Is there a newer one?
Yes: the Amazfit T-Rex Ultra 2, out February 19, 2026. Source: iDevice
How much does the Amazfit T-Rex 3 Pro cost?
List price: $399.99. Current price we last read at Amazfit: $399.99, October 2, 2026. Source: us.amazfit.com

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

In the box

What's in the box?
T-Rex 3 Pro with standard strap, Magnetic charging head, Instruction manual. Source: Amazfit

Works with

Does the Amazfit T-Rex 3 Pro work with Google Fit?
Yes. Google Fit is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app on Android. Works Source: Amazfit
Does the Amazfit T-Rex 3 Pro work with iPhone?
Yes. The T-Rex 3 Pro works with an iPhone running iOS 15.0 or later, through the Zepp app. Works Source: Amazfit
Does the Amazfit T-Rex 3 Pro work with Komoot?
Yes. Komoot is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app. Works Source: Amazfit
How does the Amazfit T-Rex 3 Pro 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 3 Pro work with Strava?
Yes. Strava is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app. Works Source: Amazfit
Does the Amazfit T-Rex 3 Pro work with TrainingPeaks?
Yes. TrainingPeaks is on the list of apps the T-Rex 3 Pro syncs to through the Zepp app. Works Source: Amazfit

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