Fitbit Sense
Full Featured Smartwatch
Specs
General
Design
| Shape | Square |
| Case Size | 40.5 x 40.5 x 12.4 mm |
| Case Material | Aluminum |
| Weight | 44g |
| Strap Width | 20 mm |
| Strap Material | Polyester, Silicone |
| Interchangeable Strap | Yes |
| Watch Colors | Gray, Gold |
| Input | Touchscreen, 1 Button |
| Water Resistance | 5 ATM |
Screen
| Screen Size | 1.58" |
| Screen Type | AMOLED Touchscreen |
| Resolution | 336 x 336 |
| Pixels per Inch | Not disclosed |
| Always On | Yes |
| Custom Faces | Yes |
| Screen Protection | Corning Gorilla Glass 3 |
Battery
| Typical Usage Battery Life (Days) | 6 |
| Watch Mode Battery Life (Days) | Not disclosed |
| GPS Mode Battery Life (Days) | 0.5 |
| Charging System | Magnetic |
| Capacity | 264 mAh |
Features
| Notifications | Recieve Notifications and Respond |
| Bluetooth | v5.0 |
| Bluetooth Calling | Receive and Place Calls |
| Bluetooth Music | Yes |
| Speaker | Yes |
| Microphone | Yes |
| Camera | No |
| Cellular | No |
| GPS | GPS (US), GLONASS (Russia) |
| Near Field Communication (NFC) | Yes |
| Payments | Fitbit Pay |
| WiFi | Yes |
| Voice Command | Google Assistant and Alexa |
| Memory | 4GB |
| Sensors | Accelerometer, Altimeter, Ambient Light, Electrocardiogram (ECG), Gyroscope, Heart Rate Monitor (HRM), Pulse Oximeter (SpO2), Temperature |
| Tracking | Blood Oxygen Level, Calories, Distance, Electrocardiogram (ECG), Fitness Level, Heart Rate, Menstrual Cycle, Skin Temperature, Sleep, Steps, Stress, Swimming, VO2 Max |
| Sport Modes | 20+ |
| Warranty | 12 Months |
Summary
| Unique Features |
Google Assistant and Alexa |
| Advantages |
Good app Can respond to notifications and take/place calls NFC with Fitbit Pay |
| Disadvantages |
Heart Rate Accuracy is poor Limited apps Monthly fee for premium account Capacitive button is not great |
| Verdict |
The Fitbit Sense under-delivers as Fitbit's flagship. The poor heart rate accuracy is the most common complaint for this watch. Also many people complain about sync issues. Unacceptable at this price point. |

