Whoop 5.0 vs Garmin Index Sleep Monitor: what the sources say, side by side
On reported prices, the Garmin Index Sleep Monitor is the cheaper of the two to own over three years. Here is everything else we can cite, and what we cannot yet.
The numbers
| Attribute | Whoop 5.0 | Garmin Index Sleep Monitor |
|---|---|---|
| Form factor | Wrist band | Upper-arm band |
| Category | Wrist band (membership) | Screenless armband |
| Reported price | Sold via membership: One $199/yr, Peak $239/yr, Life $359/yr (MG) Whoop membership page (opens in a new tab) | $169.99 Tom's Guide (opens in a new tab) |
| Ongoing cost | Membership tiers: One $199/yr, Peak $239/yr, Life $359/yr (MG) Whoop membership page (opens in a new tab) | No subscription cost captured from sources |
| Year one (calculated) | $199 to $359 | $169.99 |
| Three years (calculated) | $597 to $1,077 | $169.99 |
| Price checked | October 17, 2026 | October 17, 2026 |
| SleepLab score | Pending hands-on testing | Pending hands-on testing |
Whoop 5.0
What sources credit
- Wirecutter's pick for tracking sleep and activity together (Whoop 4.0, previous generation). Wirecutter (opens in a new tab)
- Plan prices are published on Whoop's own page: $199, $239 and $359 per year. Whoop membership page (opens in a new tab)
What to weigh
- Membership-only cost adds up to $597 to $1,077 over three years (our calculation from Whoop's prices). Whoop membership page (opens in a new tab)
- Wirecutter calls the previous generation's app interface intimidating. Wirecutter (opens in a new tab)
Consider it if: You want sleep folded into recovery and training metrics.
Garmin Index Sleep Monitor
What sources credit
- Tom's Guide found it accurate. Tom's Guide review (opens in a new tab)
- Lowest reported device price on our shortlist, at $169.99. Tom's Guide review (opens in a new tab)
What to weigh
- Tom's Guide rated it 2.5 out of 5 and called it pricey for a sleep-only device. Tom's Guide review (opens in a new tab)
Consider it if: You want a sleep-only device and do not want to wear a watch or ring to bed.
Still unknown
Whoop 5.0
- Hardware price and what each tier includes beyond the price: not captured.
- Battery life, fit and sleep-stage accuracy: needs hands-on testing.
- Data export and privacy controls.
Garmin Index Sleep Monitor
- Garmin Body Battery and Training Readiness integration details: confirm on Garmin's own page.
- Comfort on the upper arm for side sleepers: needs hands-on testing.
- Battery life and warranty terms.
We plan to wear both on the same nights, against a sleep diary, and publish the nightly numbers. Until then this page names no winner.
Questions
Which is cheaper over three years, Whoop 5.0 or Garmin Index Sleep Monitor?
On the prices we have captured, the Garmin Index Sleep Monitor costs less over three years ($169.99) than the Whoop 5.0 ($597 to $1,077). Device price only as reported by Tom's Guide; no subscription captured from sources. Membership only (One to Life tiers), from Whoop's page. Hardware pricing not captured.
Do the Whoop 5.0 and Garmin Index Sleep Monitor need a subscription?
Whoop 5.0: Membership tiers: One $199/yr, Peak $239/yr, Life $359/yr (MG). Garmin Index Sleep Monitor: No subscription cost captured from sources.
Which is more accurate for sleep?
We have not tested either yet, so we will not say. Published cross-device research suggests total sleep time agrees closely between trackers while sleep-stage minutes do not; see our accuracy guide.
Sources
- Whoop membership page (opens in a new tab)
- Terra research (opens in a new tab)
- Wirecutter (opens in a new tab)
- Tom's Guide (opens in a new tab)
- Research notes(internal notes, unconfirmed)