Amazfit T-Rex 2 vs Amazfit T-Rex 3
Amazfit T-Rex 2 (2022, listed at $229) and Amazfit T-Rex 3 (2024, listed at $279) are both sport watches, so the choice comes down to specifics.
Specs last updated · table prices are list prices; each card shows Amazon's current price when available
Amazfit T-Rex 2
Rugged AMOLED GPS watch with a 24-day battery claim, 10 ATM water resistance and military-grade durability certifications.
Amazfit T-Rex 3
Rugged AMOLED at half the price — dual-band GPS, offline maps, 27-day battery.
The verdict
On the numbers we track, Amazfit T-Rex 2 wins on weight (65 g vs 68 g) and price ($229 vs $279); Amazfit T-Rex 3 wins on battery life (27 days vs 24 days) and tracked features (6 vs 4).
Bottom line: there is no clear winner on specs (2 to 2). Decide on phone support, how often you are willing to charge, your main sport and your budget, or run the free quiz to see how each ranks for your answers.
Spec by spec
| Spec | Amazfit T-Rex 2 | Amazfit T-Rex 3 |
|---|---|---|
| Battery (rated) | 24 days | 27 days |
| Weight | 65 g | 68 g |
| List price | $229 | $279 |
| Water rating | 10ATM | 10ATM |
| Tracked features | 4 | 6 |
| Case size | 47 mm | 48 mm |
| Display | AMOLED | AMOLED |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | outdoor adventure and multisport and triathlon | outdoor adventure and multisport and triathlon |
| Released | 2022 | 2024 |
Trophy marks the better value on the five measurable specs. Battery is the manufacturer's rating, not our test. How we score is on the methodology page.
Feature overlap
Both have (4)
- built-in GPS
- blood-oxygen (SpO₂)
- AMOLED display
- swim tracking
Only Amazfit T-Rex 2 (0)
Nothing unique.
Only Amazfit T-Rex 3 (2)
- on-device music
- offline maps
Which one should you pick?
Pick the Amazfit T-Rex 2 if…
- You want to spend less: it lists for $50 less.
- You want a lighter watch: 65 g vs 68 g.
- You might switch phones: it works with both iPhone and Android, the Amazfit T-Rex 3 only works with Android.
Skip it if…
- • You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).
- • You want something light enough to sleep in — it weighs 65 g.
Pick the Amazfit T-Rex 3 if…
- You want fewer charges: about 27 days per charge vs 24 days.
- You need on-device music and offline maps, which the Amazfit T-Rex 2 does not list.
- You might switch phones: it works with both iPhone and Android, the Amazfit T-Rex 2 only works with Android.
- You want the newer model (2024 vs 2022).
Skip it if…
- • You have a small wrist (under about 160 mm) — the 48 mm case we list is large (check whether a smaller size is sold).
- • You want something light enough to sleep in — it weighs 68 g.
Frequently asked questions
Which has better battery life, the Amazfit T-Rex 2 or the Amazfit T-Rex 3?
The Amazfit T-Rex 3 has the longer rated battery life: about 27 days per charge against 24 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Amazfit T-Rex 2 or the Amazfit T-Rex 3?
The Amazfit T-Rex 2 has the lower list price: $229 against $279 in our database. List prices change often, so check Amazon for today's price.
Do the Amazfit T-Rex 2 and Amazfit T-Rex 3 work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Amazfit T-Rex 2 or the Amazfit T-Rex 3?
Neither has an edge on water rating: both are rated 10ATM. 10ATM is suitable for swimming and surface water sports. It is not a dive rating unless the maker says so.
Not sure either is right for you?
Nine questions about your phone, sport, wrist and budget, scored against all of our watches with the reasoning shown.
Take the free quiz