Marathon & trail runners
- ·Dual-band GPS
- ·Race predictor & training load
- ·Long battery in GPS mode
- ·Structured workouts

Compare fitness watches by GPS accuracy, battery life, heart-rate features, training metrics, recovery insights, mapping, comfort, phone compatibility, and budget.
How it works
A transparent, spec-based way to pick a fitness watch — no guesswork, no commission-weighted nudges.
Tell us how you train, which phone you carry, your wrist size, the features you actually use, and your budget. No email required.
Your answers run through a deterministic scoring engine that weighs each spec against hand-verified data for 25+ current flagships from Apple, Garmin, Polar, Coros, Suunto, Samsung, Google and Fitbit.
You see why each watch matched, where it falls short, and links to compare specs side by side. The same answers always produce the same ranking.
Scoring inputs
Every recommendation balances ten verified factors — drawn from published manufacturer specs and our own field testing.
Single-band vs dual-band / multi-frequency GNSS for trail and city accuracy.
Smartwatch mode and GPS-on hours, weighed against how often you actually train.
Case size and weight matched to your wrist circumference for daily wear.
Optical sensor generation, ECG availability, and chest-strap pairing support.
HRV, sleep tracking, body battery / readiness scores where supported.
Training load, VO2max trend, race predictor and structured workout support.
On-device topo maps, breadcrumb routes, turn-by-turn and re-route on the fly.
Offline music storage, Spotify/Apple Music sync, and contactless payments.
Notification depth, reply support, and app-store ecosystem for your phone.
Hard ceiling per tier so you never see a $700 watch when you asked for $200.
By user type
The features that matter depend on how you train. Here is what to prioritise.
FAQ
9 questions. One spec-based match. Free, no signup required.