Amazfit
Amazfit T-Rex 3
AMOLED · 27-day battery · Multi-band GPS
88
/ 100
From $299
VS
Garmin
Garmin fenix 7
2022 · Fitness + health
88
/ 100
From $799
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Amazfit T-Rex 3 lands at 88 and Garmin fenix 7 at 88. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Amazfit T-Rex 3 if…
- ✓27-day battery life
- ✓Multi-band GPS at $299
- ✓Free Zepp app — no subscription
Pick Garmin fenix 7 if…
- ✓Multi-day fitness tracking
- ✓GPS + heart rate
- ✓Notification mirroring
Amazfit T-Rex 3 88
vs 88 Garmin fenix 7
Score breakdown
Amazfit T-Rex 3
88 health 86
battery 100
display 88
software 80
durability 92
fitness 0
Garmin fenix 7
88 health 86
battery 94
display 88
software 0
durability 86
fitness 88
Specs side-by-side
| Spec | Amazfit T-Rex 3 | Garmin fenix 7 |
|---|---|---|
| Case | 48 mm steel + plastic | — |
| Display | 1.5″ AMOLED, 480×480 | — |
| Chipset | Custom MCU | — |
| Battery | 27 days standard / 7 days heavy use | — |
| Connectivity | GPS multi-band, BT 5.2 | — |
| Water resist | 10 ATM + IP69K | — |
| Release year | — | 2022 |
Amazfit T-Rex 3
Pros
- +27-day battery life
- +Multi-band GPS at $299
- +Free Zepp app — no subscription
Cons
- −App polish trails Garmin
- −Limited third-party apps
- −No LTE option
Garmin fenix 7
Pros
- +Multi-day fitness tracking
- +GPS + heart rate
- +Notification mirroring
Cons
- −Battery life varies dramatically
- −Companion phone required
- −Screen-on drains battery
FAQ: Amazfit T-Rex 3 vs Garmin fenix 7
Which is better, Amazfit T-Rex 3 or Garmin fenix 7? +
Both score 88 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Amazfit T-Rex 3 worth the price? +
At $299, Amazfit T-Rex 3 delivers a Specdex score of 88 — strongest in battery.
Is Garmin fenix 7 worth the price? +
At $799, Garmin fenix 7 delivers a Specdex score of 88 — strongest in battery.
Does Amazfit T-Rex 3 or Garmin fenix 7 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.