Fitness trackers, side by side
OSAWALLA vs WHOOP vs Polar vs Amazfit.
Four trackers, one table, no adjectives. Every figure below comes from each manufacturer’s own published specifications (checked October 2026). The four represent different buying models — one-time bands, a membership tracker and a training watch — so the price row matters as much as the feature rows.
| OSAWALLA This pageBG02 BAND | WHOOP5.0 | PolarPACER | AmazfitBAND 7 | |
|---|---|---|---|---|
| Price | $49.99 one-time | From $199/yr · hardware included | $299 one-time | $49.99 one-time |
| Subscription | None — all features included | Required — membership is the model | None | None · optional premium app tier |
| First-year cost | $49.99 | $199 | $299 | $49.99 |
| Battery (advertised) | Up to 20 days | Up to 14 days | Up to 7 days watch mode | Up to 18 days |
| Built-in GPS | Yes | No — phone GPS | Yes | No — phone GPS |
| Screen | None — screen-free band | None — screenless band | Full watch display | AMOLED touchscreen |
| Sport modes | 50+ | Training-activity based | 100+ · running-focused | 120+ |
| Water resistance | IP68 — pool safe | 10 ATM | 5 ATM | 5 ATM |
* First-year cost = purchase price plus 12 months of any required membership. WHOOP’s hardware ships with the membership; renewal is annual. Polar is represented by the Pacer running watch — Polar’s band-style option is the Loop, while the Pacer is its mainstream training tracker.
Core tracking features advertised by all four brands as of October 2026. Metrics, scores and coaching style differ by brand; each app presents them in its own way.
How to use this page
Three numbers worth weighing first.
Where OSAWALLA sits
One-time price, built-in GPS, 20-day battery.
The BG02 tracks the same core signals the brands above track — 24/7 heart rate, HRV, sleep, stress and 50+ sport modes. Three differences are visible in the table alone: the $49.99 one-time price, no membership at any tier, and built-in GPS in a band that lasts up to 20 days per charge. What the table cannot show is fit and strap comfort — that is what the 30-day return window is for.
FAQ
Frequently asked questions
WHOOP works on a membership model — the hardware is included with a one-year membership that starts at $199. OSAWALLA, Polar and Amazfit are one-time purchases with no required subscription.
The OSAWALLA BG02 and the Amazfit Band 7 both list at $49.99 as a one-time purchase. WHOOP 5.0 starts at $199 per year (hardware included), and the Polar Pacer lists at $299.
The OSAWALLA BG02 advertises up to 20 days per charge. The Amazfit Band 7 advertises up to 18 days, WHOOP 5.0 up to 14 days, and the Polar Pacer up to 7 days in watch mode.
The OSAWALLA BG02 and the Polar Pacer have built-in GPS, so runs and rides map without a phone. WHOOP 5.0 and the Amazfit Band 7 use connected GPS — they borrow the phone’s GPS during outdoor workouts.
The Polar Pacer has a full watch display and the Amazfit Band 7 has an AMOLED touchscreen. The OSAWALLA BG02 and WHOOP 5.0 are screenless bands — everything is read in the app, which is part of why both last weeks on a charge.
Specifications are taken from each manufacturer’s own published product pages and support documentation, checked October 2026. Prices are advertised list prices and change frequently. OSAWALLA products are wellness devices, not medical devices; the same distinction applies to the other trackers in this comparison. Nothing on this page is sponsored, and no ranking is implied — the table exists so you can weigh the numbers yourself.
Decided?
$49.99 once. That’s the whole price.
Built-in GPS, 20-day battery, 50+ sport modes. 30-day returns, no subscription.