Garmin Forerunner 55
Score: 75/100
Amazfit T-Rex 3
Score: 78/100Rankings
The Amazfit T-Rex 3 is a rugged outdoor smartwatch featuring a 27-day battery, dual-band GPS with offline maps, and a 2000-nit AMOLED screen. Its bulkier case and limited app ecosystem are notable trade-offs. Best suited for hikers, freedivers, and adventure seekers who value durability and navigation over a slim profile.
The Garmin Forerunner 55 is an entry-level GPS running watch with a lightweight design, long battery life and a sunlight-visible MIP display, making it ideal for beginners. Its limitations include a lack of advanced health sensors and modest customization options. Suited for casual runners who want reliable GPS and endurance without premium features.
| Attribute | | |
|---|---|---|
336 hours | 648 hoursbest | |
| ↓ lower better | 37 gbest | 68.3 g |
1.04 inches | 1.5 inchesbest | |
| ↓ lower better | 11.6 mmbest | 13.75 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 336 hours | 648 hours |
Sensors(1) | ||
SpO₂ Sensor | false | true |
Display(3) | ||
Display Size (inches) | 1.04 inches | 1.5 inches |
Display Resolution | 208x208 | 480 x 480 |
Display Type | MIP | AMOLED |
Build & Design(4) | ||
Weight (g) | 37 g | 68.3 g |
Thickness (mm) | 11.6 mm | 13.75 mm |
Strap Material | Silicone | Liquid silicone |
Water Resistance (IP Rating) | 5 ATM | 10 ATM |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consider the Forerunner 55 a well-rounded, budget-friendly entry-level running watch. They commend its long battery life, clear display, and reliable wrist-based heart-rate monitoring, while noting the lack of advanced sensors and limited data customization as trade-offs for its price point.
Professional reviewers praise the T-Rex 3's rugged construction, ultra-bright AMOLED screen, long-lasting battery, and premium navigation features like offline maps, while noting that its sport-mode depth and app ecosystem fall short of Garmin's offerings and that the large case may not suit all wrist sizes.
Everyday owners consistently commend the watch's week-long battery endurance, bright display, accurate GPS with offline maps, and dive certification, but they frequently mention the bulkier case, occasional Bluetooth drops, limited app functionality, and the missing USB-C charging cable as pain points.
