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.
Amazfit T-Rex Dual SolarPrice, Specs & Battery Life
Last updated
What it costs, the full specification, and how far the sun stretches the battery.
SEP 22 · LATEST ON AMAZFIT T-REX DUAL SOLAR
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.
Up to 25 days, and up to 51 days with daily sun on the back.Confirmed: us.amazfit.com
Outdoor adventure.
Solar charging, a flashlight and a cold mode for trips far from a plug.Confirmed: us.amazfit.com
Navigation.
Plan routes on the watch from preloaded maps.Confirmed: us.amazfit.com
Comparison
Compare watchesHow it compares
Cost over 3 years
$649.99
Device price plus up to three years of optional subscription.
Weight
69g
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 4Google Health Premium costs $9.99 a month. It is optional. Over 3 years that is $360.
A personalized health coach, plus the fuller sleep and readiness analysis and the workout and mindfulness libraries.
Samsung Galaxy Watch 9$379.99
Apple Watch Series 11$399
Apple Watch Series 12$399Weight
Battery life
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 Dual Solar 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.
- If you want the broadest health pictureSamsung Galaxy Watch 9
Samsung Health coaches you from your wrist.
- If workouts are the pointApple Watch Series 12
Workout Buddy now works on the watch when your iPhone is not nearby.
Quick answers
All FAQsQuick answers
How much does the T-Rex Dual Solar cost?
$649.99 at Amazfit's US store.
When did the T-Rex Dual Solar come out?
Amazfit listed it for sale in its US store on Sept 22, 2026.
How long does the T-Rex Dual Solar battery last?
Up to 25 days of typical use. With 3 hours of strong sun a day, up to 34 days through the front panel or 51 days through the back. In Amazfit's most accurate GPS mode it lasts up to 41 hours.
At a glance
THIS PRODUCTAmazfit T-Rex Dual Solar
COMPARE WITHAmazfit T-Rex 3 ProDisplay
1.32 in AMOLED, 466 x 466, up to 3,000 nits, sapphire glassConfirmed: Amazfit · Oct 2, 2026solar charging through the display
1.5Confirmed: Amazfit · Oct 2, 2026in AMOLED (48mm) or 1.32 in AMOLED (44mm), up to 3,000 nits, sapphire glass
Battery
Typical use: up to 25 days (34 days with 3 hrs of daily sun on the front, 51 days on the back)Confirmed: Amazfit · Oct 2, 2026accurate GPS: up to 41 hrs; Outdoor Extreme: up to 40 days
Typical use: up to 25 days (48mm), 17 days (44mm)Confirmed: Amazfit · Oct 2, 2026accurate GPS: up to 38 hrs (48mm), 26 hrs (44mm)
Price
The starting list price, not a temporary sale price. It is usually the first thing that rules a product in or out.
From $649.99
From $399.99
Weight
Weight can matter when something stays on your body for hours at a time.
69g watch bodyConfirmed: Amazfit · Oct 2, 2026strap 25.5g
52g (48mm) or 46.8g (44mm), without strapConfirmed: Amazfit · Oct 2, 2026
Materials
Titanium and aluminium differ in weight, price and how they wear over years.
51.4 mm case, 14.5 mm thick (16.9 mm with heart rate sensor)Confirmed: Amazfit · Oct 2, 2026Grade 5 titanium bezel, buttons and back; fiber-reinforced polymer middle frame
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
More specs⌄
Connectivity
Bluetooth, Wi-Fi and other connections determine what the device can work with.
Dual-band GPS, 6 satellite systemsConfirmed: Amazfit · Oct 2, 2026Bluetooth 5.2; Wi-Fi; speaker and mic for Bluetooth calls; flashlight; preloaded maps
6 satellite systemsConfirmed: Amazfit · Oct 2, 2026Bluetooth 5.2; Wi-Fi; speaker and mic; flashlight; downloadable maps
Current offers
Similar products to consider
Frequently asked questions
Questions about Amazfit T-Rex Dual Solar
Top questions
How much does the T-Rex Dual Solar cost?
$649.99 at Amazfit's US store.
When did the T-Rex Dual Solar come out?
Amazfit listed it for sale in its US store on Sept 22, 2026.
How long does the T-Rex Dual Solar battery last?
Up to 25 days of typical use. With 3 hours of strong sun a day, up to 34 days through the front panel or 51 days through the back. In Amazfit's most accurate GPS mode it lasts up to 41 hours.
What screen does the T-Rex Dual Solar have?
A 1.32-inch AMOLED at 466 x 466, up to 3,000 nits, under sapphire glass. The screen also collects solar energy.
How big and heavy is the T-Rex Dual Solar?
The case is 51.4mm across and 14.5mm thick, or 16.9mm including the heart rate sensor. The watch body weighs 69g and the strap 25.5g.
What is the T-Rex Dual Solar made of?
A Grade 5 titanium bezel and buttons, a fiber-reinforced polymer middle frame, and a back made of Grade 5 titanium and glass-ceramic.
Can I dive with the T-Rex Dual Solar?
Yes. It is rated 10 ATM and Amazfit lists freediving to 50m and recreational scuba diving.
Does the T-Rex Dual Solar have a flashlight?
Yes, with 4 white brightness levels, a red light mode and a Boost Mode.
Does the T-Rex Dual Solar work in the cold?
Yes. Its Low Temperature Mode keeps essential functions working down to -30°C (-22°F).
Does the T-Rex Dual Solar come with a charging cable?
No. The box holds the watch with its strap, a magnetic charging head and a manual. The head takes your own USB-C cable.
Can I plan a route on the T-Rex Dual Solar without my phone?
Yes. You can plan routes on the watch from its preloaded maps and store up to 100 routes.
Using it
What does it cost?
It costs $649.99. 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 1.32 inches. Source: Amazfit
How heavy is it?
It weighs 69g. 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
Does it track heart rate?
Yes, it tracks your heart rate. Source: Amazfit
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
Water
Can it get wet (shower, pool, swimming)?
Yes, you can shower and swim in it. It is rated to 50m, and for snorkelling. Source: Amazfit
Price and models
Is there a newer one?
No. The Amazfit T-Rex Dual Solar is the current model. Source: iDevice
How much does the Amazfit T-Rex Dual Solar cost?
List price: $649.99. Current price we last read at Amazfit: $649.99, 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 Dual Solar with silicone strap, Magnetic charging head, Instruction manual. Source: Amazfit
Works with
Does the Amazfit T-Rex Dual Solar 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 Dual Solar 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 Dual Solar 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 Dual Solar 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 Dual Solar 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 Dual Solar 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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