Upfront Cost
~$249 one-time
$0 hardware (subscription required)
Subscription Fee
None
~$30/month or ~$239/year
Built-in GPS
Yes (standalone GPS)
No GPS
Display
1.2" AMOLED color touchscreen
None (screenless)
Battery Life
Up to 19 days (smartwatch mode)
Up to 5 days; charges while wearing
HRV Tracking
HRV Status (nightly average trend)
Detailed nightly HRV + daily Recovery Score
Sleep Tracking
Sleep stages, score, overnight SpO2
Sleep stages, coach, disturbances, journal
Wearable Form Factor
Wrist watch (20mm band)
Wrist band, bicep, or clothing pod options
Sports Profiles
30+ activity modes with GPS maps
Auto-detects activities; ~80 sport types
Smartphone Notifications
Yes (texts, calls, apps)
No notifications
Water Resistance
5 ATM (50m)
IP68 waterproof
Music Storage
Up to 500 songs (offline playback)
None
Worth knowing
- Garmin Forerunner 165 includes Garmin Coach adaptive training plans with no extra fee.
- Whoop 4.0's hardware is 'free' but you'll pay $239-$359/year for the subscription — often more than the Garmin over 2 years.
- Whoop tracks 'Strain' on a 0-21 scale so you know when you're pushing too hard — Garmin uses Body Battery instead.
- Garmin's AMOLED display is readable in bright sunlight and dark rooms; Whoop wearers must check their phone for any data.
- Whoop allows body placement beyond the wrist — useful for sports where a watch gets in the way.
Whoop 4.0 has no screen, no buttons, and no GPS — it's essentially a $30/month bracelet that silently judges your sleep choices and texts you guilt via app.
If you wantYou want a GPS running watch that does it all without ongoing fees
Garmin Forerunner 165 is a complete sports watch with maps, music, and coaching for a one-time price.
→ Pick Garmin Forerunner 165 If you wantYou're laser-focused on recovery, HRV, and sleep optimization
Whoop 4.0's Recovery Score and sleep coaching are the most detailed in the consumer market, period.
→ Pick Whoop 4.0 If you wantYou're on a tight budget long-term
No subscription means the Garmin pays for itself vs. Whoop within about 10-12 months.
→ Pick Garmin Forerunner 165 If you wantYou play contact or water sports and hate screens
Whoop's flexible placement options and screenless design mean nothing to break or scratch mid-game.
→ Pick Whoop 4.0 Some links on this page are affiliate links. If you sign up through them, we may earn a commission at no extra cost to you.