Do what's best for your body with an ECG app for your heart and an EDA sensor for your stress on the most advanced fitness and health tracker.
Operating system compatibility | Android, iOS |
Wristband material | Silicone |
Case material | Aluminium, Steel |
Smartwatch functions | Alarm clock, Date display, Smart notifications, Timer + stopwatch |
Activities | Cycling, Fitness, Running, Swimming |
Health functions | Calories, Heart rate measurement, Heart rate monitoring, Pedometer, Sleep recording, Stress levels |
Item number | 23057121 |
Manufacturer | Fitbit |
Category | Smartwatches |
Manufacturer no. | FB421BKBK-EUBNDL |
Release date | 12.1.2023 |
Exact colour description | Black |
Watch type | Fitness Tracker |
Durability | Waterproof (5 ATM) |
Protection type (IP code) | Waterproof |
Operating system | Fitbit OS |
Operating system compatibility | Android, iOS |
Smartwatch functions | Alarm clock, Date display, Smart notifications, Timer + stopwatch |
Health functions | Calories, Heart rate measurement, Heart rate monitoring, Pedometer, Sleep recording, Stress levels |
Activities | Cycling, Fitness, Running, Swimming |
Sensors | Heart rate sensor, Pulse Oximeter |
Localisation technology | GLONASS, GPS |
Time display | Digital |
Screen technology | AMOLED |
Wristband colour | Black |
Wristband material | Silicone |
Wristband size | One size |
Strap width | 23 mm |
Strap description | Sports bracelet |
Strap fastener | Buckle |
Case colour | Graphite |
Case material | Aluminium, Steel |
Glass | Gorilla Glass 3 |
Shape of watch | Square |
Case diameter | 26.43 mm |
Case material | Stainless steel |
Connectivity | Bluetooth, NFC |
Bluetooth version | 3.0 |
Power supply | Rechargeable battery operated |
Battery type | Li-ion |
Battery life (without GPS) | 7 Days |
Runtime (in GPS mode) | 0.21 day |
Charging time | 2 h |
Battery size | Device specific |
Battery life | 7 Days |
CO₂-Emission | |
Climate contribution |
Scope of delivery | White Strap |
Product Safety |
Length | 16 cm |
Width | 15 cm |
Height | 8 cm |
Weight | 260 g |
How often does a product of this brand in the «Smartwatches» category have a defect within the first 24 months?
Source: GalaxusHow 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: GalaxusHow often is a product of this brand in the «Smartwatches» category returned?
Source: GalaxusThere are many selling points for the Fitbit Charge 5: the good analysis, the colour display with always on and NFC. But the most important feature is the ECG: no other fitness tracker offers this and it makes the device unique. On the other hand, it lacks the music function and the step counter's floor recording.
"One wristwatch, one function - that has long been a thing of the past. Beyond telling the time, smartwatches and fitness trackers offer more and more possibilities: Phone, music player, fitness tracker, messaging service - just to name a few. Wristwatches have become powerful computers...
A matter of taste: instead of a floor counter and music control, the Charge 4 successor has a colour display that always shows the time and electrodes that examine the heart rhythm. There has never been an ECG in such a slim band, which deserves the award for top innovation.