Apple Watch Series 6 vs Fitbit Inspire 3
The Verdict
Apple Watch Series 6 dominates as a comprehensive smartwatch with its always-on LTPO OLED Retina display (324x394 or 368x448 resolution), faster Apple S6 SiP processor, and robust health features including ECG and blood oxygen monitoring. Battery endurance reaches 18 hours with premium materials,aluminum, stainless steel, or titanium options. Fitbit Inspire 3 appeals to budget-conscious users seeking essential fitness tracking at $99, delivering impressive 10-day battery life, lightweight design (20g), and helpful features like skin temperature monitoring. However, its smaller 0.73-inch AMOLED display lacks always-on capability, no GPS limits outdoor tracking, and plastic construction feels less premium. For serious health monitoring, seamless iOS integration, and advanced features like ECG and cellular connectivity, Apple Watch Series 6 justifies its $399 investment. Fitbit Inspire 3 suits casual fitness enthusiasts prioritizing affordability and battery longevity over performance and ecosystem integration. Choose Series 6 for comprehensive health data and smart features; choose Inspire 3 for basic tracking on a minimal budget.
Who Should Buy
Buy the Apple Watch Series 6 if…
- →First Apple Watch with blood oxygen (SpO2) monitoring
- →Always-On display is 2.5x brighter outdoors than Series 5
- →U1 chip enables precise Find My features and car key unlock
Buy the Fitbit Inspire 3 if…
- →10-day battery life — charge once and forget for well over a week
- →Color AMOLED display is a huge upgrade over Inspire 2's grayscale
- →Ultra-lightweight at 20 g — perfect for sleep tracking
Category Scores
Pros & Cons
Apple Watch Series 6
Pros
- First Apple Watch with blood oxygen (SpO2) monitoring
- Always-On display is 2.5x brighter outdoors than Series 5
- U1 chip enables precise Find My features and car key unlock
- S6 chip is 20% faster than S5 — noticeably snappier
- Multiple premium case materials including titanium and blue aluminum
Cons
- 18-hour battery still requires daily charging
- SpO2 readings are for wellness only — not medical grade
- No keyboard input — smaller bezels came in Series 7
- Charging speed is slow compared to Series 7+
Fitbit Inspire 3
Pros
- 10-day battery life — charge once and forget for well over a week
- Color AMOLED display is a huge upgrade over Inspire 2's grayscale
- Ultra-lightweight at 20 g — perfect for sleep tracking
- SpO2 and skin temperature sensors at just $99
- 5ATM water resistance for swimming
Cons
- No built-in GPS — relies on phone GPS for outdoor tracking
- No NFC — cannot use Fitbit Pay
- Tiny screen limits notification readability
- Best health insights locked behind Fitbit Premium subscription
- No always-on display option
Full Specifications
| Spec | Apple Watch Series 6 | Fitbit Inspire 3 |
|---|---|---|
| Software | watchOS 7 (upgradable to watchOS 11+) | Fitbit OS |
| Body | ||
| Weight | 30.5 g (40mm Al) / 36.2 g (44mm Al) | 20 g |
| Case material | Aluminum / Stainless Steel / Titanium | Plastic resin |
| Water resistance | WR50 (50m) | 5ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 18 hours | Up to 10 days |
| Display | ||
| Size | 40mm / 44mm | 0.73 inches |
| Type | LTPO OLED Always-On Retina | AMOLED |
| Always-on display | ||
| Resolution | 324 x 394 / 368 x 448 | 256 x 124 |
| Processor | ||
| Chipset | Apple S6 SiP | 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 Apple products or all Fitbit products. View full details for the Apple Watch Series 6 or the Fitbit Inspire 3.