Design
| Screen Size i | 1" (2 others) |
| Display Type i | OLED/AMOLED (82 others) |
| Atm rating i | 5 ATM (77 others) |
| Pixel Density i | 189 ppi |
| Has branded damage resistant glass i | ✔ (15 others) |
| Gorilla glass version i | Gorilla Glass 3 (8 others) |
Sensors
| Has gps i | ✔ (26 others) |
| Has A Heart Rate Monitor i | ✔ (132 others) |
| Monitors Blood Oxygenation Levels i | ✔ (71 others) |
| Has A Barometer i | ✔ (16 others) |
Activity tracking
| Detects Activities Automatically i | ✔ (124 others) |
| Has multi sport mode i | ✔ (74 others) |
| Has Exercise Tagging i | ✔ (146 others) |
| Tracks Elevation i | ✔ (68 others) |
| Tracks Distance i | ✔ (152 others) |
| Tracks Steps Taken i | ✔ (166 others) |
| Has A Route Tracker i | ✔ (54 others) |
| Measures Pace i | ✔ (101 others) |
| Tracks Your Sleep i | ✔ (159 others) |
Connectivity
| Supports wi fi i | ✖ |
| Bluetooth Version i | 4 (54 others) |
| Has nfc i | ✔ (25 others) |
| Is compatible with android i | ✔ (165 others) |
| Is compatible with ios i | ✔ (160 others) |
Battery
| Battery Life i | 7 days (27 others) |
| Has a rechargeable battery i | ✔ (151 others) |
App & Software
| Counts How Many Calories You've Burned i | ✔ (162 others) |
| Provides Activity Reports i | ✔ (164 others) |
| Has Inactivity Alerts i | ✔ (107 others) |
| Has Goal Setting i | ✔ (153 others) |
| Has Achievements i | ✔ (149 others) |
| Can Be Personalised i | ✔ (89 others) |
Miscellaneous
| Water resistance i | Waterproof (108 others) |
| Has a battery level indicator i | ✔ (120 others) |
| Is compatible with windows i | ✔ (25 others) |
| Is compatible with mac os x i | ✔ (20 others) |
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Frequently Asked Questions
What is the water resistance rating of the Fitbit Charge 4?
At 5 ATM, the Fitbit Charge 4 ranks #3 out of 81 — see ranking fitness tracker products — one of the Highest ATM water resistance rating in this category.
What is the battery life of the Fitbit Charge 4?
At 7 days, the Fitbit Charge 4 is 80% below the category average for battery life, ranking #89 out of 159 — see ranking fitness tracker products.
What is the pixel density of the Fitbit Charge 4?
At 189 ppi, the Fitbit Charge 4 is 28% below the category average for pixel density, ranking #64 out of 77 — see ranking fitness tracker products.
How big is the Fitbit Charge 4 screen?
At 1", the Fitbit Charge 4 is 17% below the category average for screen size, ranking #67 out of 106 — see ranking fitness tracker products.