Fitbit Sense vs Garmin Venu 3
The Verdict
Both smartwatches deliver comprehensive health monitoring with ECG, SpO2, and skin temperature sensors, but differ significantly in longevity and display quality. Fitbit Sense offers a compact 40mm AMOLED display (336x336) with solid 6+ day battery life, making it ideal for users prioritizing portability and everyday wear comfort. Garmin Venu 3 counters with a larger 1.4-inch AMOLED screen (454x454 resolution) and exceptional 14-day battery in smartwatch mode, plus extended 26-hour GPS capability for serious athletes. Both feature NFC, WiFi, and GPS, though Venu 3's stainless steel construction feels more premium versus Fitbit's aluminum. At $299 versus $449.99, Fitbit Sense represents better value for casual fitness tracking, while Garmin Venu 3 justifies its premium price through superior display fidelity and battery endurance for endurance athletes and those seeking longer charging intervals.
Who Should Buy
Buy the Fitbit Sense if…
- →Most comprehensive health sensor suite at launch — EDA, ECG, SpO2, skin temp
- →6+ day battery outlasts Apple Watch and Samsung Galaxy Watch
- →Built-in GPS for phone-free outdoor workouts
Buy the Garmin Venu 3 if…
- →Outstanding 14-day battery life with AMOLED display
- →Comprehensive health tracking including ECG and skin temperature
- →Built-in speaker and microphone for calls
Category Scores
Pros & Cons
Fitbit Sense
Pros
- Most comprehensive health sensor suite at launch — EDA, ECG, SpO2, skin temp
- 6+ day battery outlasts Apple Watch and Samsung Galaxy Watch
- Built-in GPS for phone-free outdoor workouts
- Stress management score with EDA sensor is unique
- NFC for Fitbit Pay contactless payments
Cons
- Fitbit OS app ecosystem is very limited compared to watchOS/Wear OS
- Capacitive button is unreliable and frustrating to press
- Many advanced features require Fitbit Premium subscription ($10/mo)
- Google acquisition created uncertainty about Fitbit OS future
Garmin Venu 3
Pros
- Outstanding 14-day battery life with AMOLED display
- Comprehensive health tracking including ECG and skin temperature
- Built-in speaker and microphone for calls
- Advanced sleep coaching and nap detection
- Multi-band GNSS for accurate GPS tracking
Cons
- No third-party app ecosystem like Wear OS
- Limited smartwatch features compared to Apple/Samsung
- No cellular connectivity option
- Garmin Pay supports limited banks
Full Specifications
| Spec | Fitbit Sense | Garmin Venu 3 |
|---|---|---|
| Software | Fitbit OS | Garmin OS |
| Body | ||
| Weight | 45.9 g | 47 g |
| Case material | Aluminum | Stainless steel bezel, fiber-reinforced polymer case |
| Water resistance | 5ATM | 5 ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 6+ days | Up to 14 days smartwatch mode, 26 hours GPS |
| Display | ||
| Size | 40mm (1.58 inches) | 1.4 inch |
| Type | AMOLED | AMOLED |
| Always-on display | ||
| Resolution | 336 x 336 | 454 x 454 |
| Processor | ||
| Chipset | Fitbit custom processor | — |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in smartwatches, see all Fitbit products or all Garmin products. View full details for the Fitbit Sense or the Garmin Venu 3.