Between the Lily 2 and 5.0, the Lily 2 comes out ahead in several specs, while the 5.0 wins on battery life and sport modes. Overall, the Lily 2 scores 46.1 and the 5.0 scores 65.3 on our Mars Score.
Which should you buy?
The 5.0 is the clear pick on raw spec strength, leading by 19.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
The Lily 2 doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the 5.0 if you care most about battery life and sport modes. Its strongest claims are battery life, sport modes, water resistance.
Both ship with comparable gps, spo2, so those specs don't separate the two — focus on the differences below.
Bottom line: the 5.0 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Garmin - Lily 2 wins
- No decisive advantages.
Why WHOOP - 5.0 wins
- ▲Battery life — 180.00% more. 14 days vs 5 days.
- ▲Sport modes — 100.00 more. 120 vs 20.
- ▲Water resistance — 5.00 ATM more. 10 vs 5.
Spec comparison
Fitness
| Spec | Garmin - Lily 2 | WHOOP - 5.0 |
|---|---|---|
| GPS | false | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 20 | 120lead |
Battery
| Spec | Garmin - Lily 2 | WHOOP - 5.0 |
|---|---|---|
| Battery life | 5 days | 14 dayslead |
| Water resistanceⓘ | 5 ATM | 10 ATMlead |
Design
| Spec | Garmin - Lily 2 | WHOOP - 5.0 |
|---|---|---|
| Display size | 1.0 "lead | 0 " |
| Weight | 21 g | 21 g |
Spec-level deep dives
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