Apple defends the smartwatch throne with the Ultra 2. The first-class overall package of unique smart and "good" sports and fitness functions keeps the Apple Watch Ultra 2 at the top of the smartwatch list. The better battery life alone compared to all other Apple Watches is a reason to buy...
Fitbit Sense 2
40.30 mmCase colour3
Product details
The Fitbit Sense 2 is an advanced smartwatch designed to support the well-being and health of its users. With a sleek design and a variety of features, it offers a comprehensive solution for fitness tracking and health monitoring. The watch is equipped with a durable aluminum case and a comfortable silicone strap, making it suitable for both everyday wear and sports activities. The digital time display allows for easy readability, while the long battery life of up to six days ensures continuous use without frequent recharging. The Sense 2 features state-of-the-art Bluetooth technology, enabling seamless connectivity to other devices and supporting NFC for contactless payments.
- Comprehensive health monitoring with advanced sensors
- Long battery life of up to 6 days
- Bluetooth 5.0 for enhanced connectivity
- NFC function for contactless payments.
Smartwatch functions | Alarm clock, Touch screen |
Health functions | Blood pressure measurement, Calories, Heart rate measurement, Pedometer, Respiratory rate |
Operating system compatibility | Android, iOS |
Wristband material | Silicone |
Case material | Aluminium |
Item number | 49579357 |
Manufacturer | Fitbit |
Category | Smartwatches |
Manufacturer no. | FB521BKGB-US |
Release date | 19.9.2024 |
Exact colour description | Graphites, Shadow Grey |
Watch type | Smart watch |
Durability | Waterproof |
Protection type (IP code) | Waterproof |
Operating system | Fitbit OS |
Operating system compatibility | Android, iOS |
Integrated components | Microphone, Speakers |
Smartwatch functions | Alarm clock, Touch screen |
Health functions | Blood pressure measurement, Calories, Heart rate measurement, Pedometer, Respiratory rate |
Sensors | Accelerometer, Ambient light sensor, Heart rate sensor, Temperature sensor |
Localisation technology | GLONASS, GPS |
Time display | Digital |
Wristband colour | Graphite |
Wristband material | Silicone |
Wristband size | L, S |
Case colour | Black |
Case material | Aluminium |
Glass | Gorilla Glass 3 |
Shape of watch | Square |
Case diameter | 40.30 mm |
Case thickness | 11.20 mm |
Connectivity | Bluetooth, NFC |
Bluetooth version | 5.0 |
Battery type | LiPo |
Runtime (in GPS mode) | 0.21 day |
Charging time | 2 h |
Battery life | 6 Days |
battery runtime | 0.02 Year |
Smart home ecosystem | Amazon Alexa |
Country of origin | United Kingdom |
CO₂-Emission | |
Climate contribution |
Weight | 37.64 g |
Product Safety |
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Smartwatches» category have a defect within the first 24 months?
Source: Galaxus- 9.Xcoast2,7 %
- 12.Amazfit2,8 %
- 12.Fitbit2,8 %
- 14.VTech3 %
- 15.Xiaomi3,2 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 16.CMF3 days
- 16.Coros3 days
- 16.Fitbit3 days
- 16.Polar3 days
- 20.Samsung4 days
Return rate
How often is a product of this brand in the «Smartwatches» category returned?
Source: Galaxus- 1.OPPO1,7 %
- 2.Fitbit2,6 %
- 3.Wahoo2,8 %
- 4.Xiaomi3,1 %
- 5.TCL3,8 %

- Google Maps and Wallet integrated
- good wearing comfort
- comprehensive equipment
- Low adaptability of the software
- Measurements partly not manually triggerable
- Telephone function too slow
Many smartwatches and fitness wristbands tested are real all-rounders: they serve as heart rate monitors and altimeters, count steps, calculate the length of distances covered as well as calorie consumption and analyse sleep patterns. Some can also be used to play music, make phone calls or send and receive messages from messenger services such as Whatsapp...

- good workmanship
- Integrated GPS
- ECG function
- Hands-free function
- Extensive activity and health tracking
- No own music control
- Good fitness and health analysis
- multi-day duration
- Rudimentary smart functions
- Apps from Fitbit only
A bird in the hand is worth two in the bush! Fitbit concentrates on its strengths: Fitness, health, battery life. Instead, it lacks sophisticated smartwatch functions and music playback. The Sense 2 is a good, enduring fitness companion that is easy to use, but a little sluggish.
- Detailed analysis of fitness and health including ECG
- Few clever functions
- Delayed reaction to inputs
Fitbit focuses on its strengths with the new watches: Fitness, health and battery life. Smart functions and music playback are missing. The Sense 2 is a good, enduring fitness companion, the Versa 4 was slightly off in the heart data.
