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Garmin fenix 8 AMOLED (51 mm) vs Garmin Forerunner 570 (47 mm)
The specs that matter for triathlon, side by side, from each maker’s own published figures.
| Spec | Garmin fenix 8 AMOLED (51 mm) | Garmin Forerunner 570 (47 mm) |
|---|---|---|
| GPS battery | 84 h | 18 h |
| Smartwatch battery | 29 days | 11 days |
| Triathlon / multisport mode | Yes | Yes |
| Onboard maps | Yes | No |
| Open-water GPS (our rating) | 5 / 5 | 5 / 5 |
| Weight | 102 g | 50 g |
| Screen | AMOLED | AMOLED |
| Price | ~$1,099.99 | See retailer |
Open-water GPS is our 1–5 rating from the satellite systems each maker lists: multi-band receivers score 5. Everything else is the maker’s own figure.
Which should you pick?
Garmin
Pick the fenix 8 AMOLED (51 mm) if…
- you want the longer GPS battery: 84 h vs 18 h
- you want the longer smartwatch battery: 29 days vs 11 days
- you want onboard maps
Specs from the makers’ own pages: Garmin, Garmin.
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