WHOOP
WHOOP 4.0
—
Released 2021-10
Best Fitness Trackers · head-to-head
WHOOP 4.0 vs Amazfit Band 7
A sourced, side-by-side comparison. Amazfit Band 7 is cheaper at $49.99. Every spec and price links to its source.
Amazfit (Zepp Health)
Amazfit Band 7
$49.99
Released 2022-07
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | WHOOP 4.0 | Amazfit Band 7 |
|---|---|---|
| US price | — | $49.99 US MSRP at launch Jul 20 2022. |
| Brand | WHOOP | Amazfit (Zepp Health) |
| Released | 2021-10 | 2022-07 |
| Form factor | band | band |
| Display | — | AMOLED 1.47in |
| Battery days | 5 | 18 |
| Gps | No | No |
| Spo2 | Yes | Yes |
| Ecg | No | No |
| Subscription required | Yes | No |
| Water resistance (m) | 10 | 50 |
| Release | 2021 | 2022 |
Sources — WHOOP 4.0: dcrainmaker.com (verified 2026-06-15). Amazfit Band 7: us.amazfit.com (verified 2026-06-15).
What's the difference between the WHOOP 4.0 and Amazfit Band 7?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Battery days: WHOOP 4.0 5 vs Amazfit Band 7 18
- Subscription required: WHOOP 4.0 true vs Amazfit Band 7 false
- Water resistance (m): WHOOP 4.0 10 vs Amazfit Band 7 50
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
WHOOP 4.0
No sourced tester review yet.
Amazfit Band 7
Two whitelisted hands-on reviews cover this exact model and both survived verification: Notebookcheck (lab-measured, 2023) and Tom's Guide (2024). Both praise the AMOLED display and long battery life for a sub-$50 tracker with 120 sport modes, and both flag the lack of built-in GPS. Notebookcheck additionally lab-flags large exercise heart-rate errors and a slow, poorly implemented Alexa; Tom's Guide flags paywalled Zepp premium reports and a strap that can come undone. (2 sourced reviews, 2 lab-tested.)
Praised: Good AMOLED display / panel quality; Long battery life for the price; 120 sport/activity modes at a sub-$50 price.
Flagged: No built-in GPS (relies on paired phone); Large heart-rate deviations during exercise (up to 39 bpm); Amazon Alexa is slow and poorly implemented.