Fitbit Charge 2
Score: 78/100
Fitbit Sense 2
Score: 83/100Rankings
The Fitbit Sense 2 is a premium health-focused smartwatch offering comprehensive sensors like ECG, skin temperature, and SpO₂ alongside built-in GPS and up to six days of battery life. Its heavier weight and lack of Wi-Fi connectivity limit its appeal for users seeking a lighter, more standalone device. Ideal for health-conscious athletes who value deep analytics.
The Fitbit Charge 2 delivers continuous PurePulse heart-rate monitoring, 4-day battery life, and water resistance up to 50 m, complemented by phone-connected GPS. Its limitations include a small tap-activated OLED display and lack of built-in GPS or SpO₂ monitoring. Ideal for users seeking a reliable, brand-trusted tracker for basic fitness and sleep tracking.
| Attribute | | |
|---|---|---|
— | 144 hoursbest | |
| ↓ lower better | 31.8 gbest | 190.5 g |
— | 336 pxbest | |
0.72 in | 1.58 inbest | |
— | 40best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 4 days hours | 144 hours |
Build & Design(1) | ||
Weight (g) | 31.8 g | 190.5 g |
Display(3) | ||
Screen Size (in) | 0.72 in | 1.58 in |
Display Type | OLED | AMOLED |
Resolution (px) | 128x72 px | 336 px |
Connectivity(2) | ||
Built‑in GPS | false | true |
Bluetooth Version | 4.0 | LE |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Charge 2 for its surprisingly accurate heart-rate tracking that aligns with chest-strap references, its comprehensive suite of fitness and sleep features, and its solid 4-day battery life.
Everyday users value the 24/7 heart-rate monitoring, comfortable small blue band, auto-sleep and exercise detection, and the long battery that minimizes charging.
Professional reviewers highlight the Sense's advanced health toolkit-cEDA stress monitoring, skin temperature tracking, and SpO₂ measurement as innovative steps beyond typical fitness trackers, while noting the limited regional availability of the ECG feature.
