Garmin

Garmin Forerunner 255

Name: Garmin Forerunner 255
Brand: Garmin

—/100

Comparison indexNot rated

Understanding the 100-point index

The index converts the published five-point rating using a fixed scale. It preserves order and ties; it is neither a new performance measurement nor a quality percentage.

85–100Excellent

70–84Very strong

55–69Good

40–54Notable trade-offs

0–39Limited

For example: 3.0/5 → 36; 4.0/5 → 64; 4.5/5 → 81; 5.0/5 → 100.

Index = 100 × (rating out of 5 ÷ 5)², rounded to the nearest integer.

Equal original ratings keep an equal index. Adding models does not change the scale.

Comparison guidelines

0 points: equal index. 1–7: small gap. 8–14: visible advantage. 15 or more: large gap. These are editorial guidelines, not statistical significance thresholds.

Indices derived from external reviews retain their original rating and source. Methods and dates may differ, so these comparisons do not declare an automatic winner.

A 45.6 mm running and triathlon watch with multi-band positioning and physical buttons. This is the standard Forerunner 255, without onboard music storage.

Mid-rangeReleased 2022

Understanding price segments

A relative scale of each model’s market positioning. It does not represent fixed amounts or current Amazon prices. Promotions, condition and sellers can change the budget needed.

Indicative priceCheck current price

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SPECIFICATIONS

Battery life: Up to 14 days; 30 h GPS
GPS: Multi-band GNSS · GPS, GLONASS, Galileo
Display: 1.3″ MIP · 260 × 260
Compatibility: iPhone and Android
Water resistance: 5 ATM

Manufacturer specifications →

Strengths

Multi-band positioning
Triathlon and structured training

Weaknesses

Check battery condition and software support before buying used.
No touchscreen

WHO SHOULD SKIP IT

Choose another model if you need offline music.

Older-generation model: check condition, warranty and currently supported features before buying.

THE VERDICT

Who is it for?

A 45.6 mm running and triathlon watch with multi-band positioning and physical buttons. This is the standard Forerunner 255, without onboard music storage.