WHOOP
WHOOP 4.0
—
Released 2021-10
Best Fitness Trackers · head-to-head
WHOOP 4.0 vs Samsung Galaxy Ring
A sourced, side-by-side comparison. Samsung Galaxy Ring is cheaper at $399.99. Every spec and price links to its source.
Samsung
Samsung Galaxy Ring
$399.99
Released 2024-07
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | WHOOP 4.0 | Samsung Galaxy Ring |
|---|---|---|
| US price | — | $399.99 |
| Brand | WHOOP | Samsung |
| Released | 2021-10 | 2024-07 |
| Form factor | band | ring |
| Display | — | — |
| Battery days | 5 | 7 |
| Gps | No | No |
| Spo2 | Yes | Yes |
| Ecg | No | No |
| Subscription required | Yes | No |
| Water resistance (m) | 10 | 100 |
| Release | 2021 | 2024 |
Sources — WHOOP 4.0: dcrainmaker.com (verified 2026-06-15). Samsung Galaxy Ring: androidcentral.com (verified 2026-06-15).
What's the difference between the WHOOP 4.0 and Samsung Galaxy Ring?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Form factor: WHOOP 4.0 band vs Samsung Galaxy Ring ring
- Battery days: WHOOP 4.0 5 vs Samsung Galaxy Ring 7
- Subscription required: WHOOP 4.0 true vs Samsung Galaxy Ring false
- Water resistance (m): WHOOP 4.0 10 vs Samsung Galaxy Ring 100
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
WHOOP 4.0
Across 3 testing outlets, the Whoop 4.0 earns a consistently positive verdict, with GearJunkie scoring it 8.0/10. Reviewers converge on its accuracy for sleep, strain, and recovery tracking and its tangible impact on users' daily habits, while the recurring subscription cost (up to $30/month, or $239/year) is the main friction point raised. Battery life is reported consistently at around 4 to 5 days across sources. (3 sourced reviews, 3 lab-tested.)
Praised: Accurate sleep, recovery, and strain tracking (validated against gold-standard measures in one study, corroborated by consistency checks and accurate strain/recovery predictions); Meaningful, positive impact on users' lifestyle and habits; Consistent readings when compared against other wearables.
Flagged: Ongoing subscription cost is a sticking point for some users/reviewers.
Samsung Galaxy Ring
Three whitelisted testers (Engadget, TechRadar, Tom's Guide) wore the first-gen Galaxy Ring for a week or more. All praise its light, comfortable design, ~5-7 day battery and no-subscription Samsung Health tracking. Common gripes: the $399 price, Samsung-phone/app lock-in, and thin feature set versus Oura. None ran lab-grade accuracy tests. (3 sourced reviews, 2 lab-tested.)
Praised: Lightweight, comfortable, unobtrusive to sleep in; Strong real-world battery life (roughly 5-7 days); No subscription fee for Samsung Health features.
Flagged: High $399 price for limited functionality vs a watch; Requires Samsung/Android + Samsung Health; no iPhone support and gestures limited to some phones; Software/features lag Oura and AI advice can be off-base.