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Garmin Forerunner 165 vs Garmin Forerunner 55
The specs that matter for triathlon, side by side, from each maker’s own published figures.
| Spec | Garmin Forerunner 165 | Garmin Forerunner 55 |
|---|---|---|
| GPS battery | 19 h | 20 h |
| Smartwatch battery | 11 days | 14 days |
| Triathlon / multisport mode | No | No |
| Onboard maps | No | No |
| Open-water GPS (our rating) | 3 / 5 | 3 / 5 |
| Weight | 39 g | 37 g |
| Screen | AMOLED | MIP |
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 Forerunner 165 if…
On the specs above it doesn’t pull ahead, so choose on fit, feel or price.
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Garmin
Pick the Forerunner 55 if…
- you want the longer GPS battery: 20 h vs 19 h
- you want the longer smartwatch battery: 14 days vs 11 days
- you want the lighter one: 37 g vs 39 g
Specs from the makers’ own pages: Garmin, Garmin.
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Triathlon Watch Comparison
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Head-to-head comparisons
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