This is the heart of the Galaxy Watch 7. Samsung has integrated advanced sensors for comprehensive monitoring of your health.
Cardiac accuracy:
We compared the Galaxy Watch 7 with a reference heart rate monitor (Garmin) during 3 running sessions. Results :
Verdict: Reliable for daily monitoring, but less precise than a heart rate belt during intense exercise.
Training modes:
The watch offers 100+ workout modesof which :
We tested swimming in a pool: the watch correctly detected the lengths and the water resistance was confirmed (no water infiltration).
Sleep tracking:
The Galaxy Watch 7 detects sleep phases (light, deep, REM). Compared to our actual sleep, detection is quite precise (difference of ±15 minutes).
Stress and breathing:
Stress measurements are based on heart variability. Useful for identifying stress peaks, but to take with a step back.
SpO2 (oxygen saturation):
Correct measurement, comparable to a finger oximeter. Useful for detecting sleep apnea.
This is the major weak point of the Galaxy Watch 7. Samsung announces 2 days of autonomy, but our tests show a more nuanced reality.
Actual usage:
With normal usage (notifications, 1-2 workouts per day, screen always on), we obtained 1.5 days before having to recharge.
Recharge:
Verdict: Autonomy is disappointing for a high-end watch. Users accustomed to the Apple Watch (1-2 days) will not be surprised, but those coming from Garmin (7-14 days) will be disappointed.
Important note: The Bluetooth model (the most common) does not have built-in GPS. It uses the phone's GPS for trips. This is a major limitation for runners who want to train without a phone.
With Android:
With iPhone:
Verdict: The Galaxy Watch 7 is clearly optimized for Android. If you have an iPhone, choose the Apple Watch.
We tested payments with Samsung Pay. It works well in France, but the network of merchants accepting payments by watch remains limited.
| Model | Price |
|---|---|
| Galaxy Watch 7 40mm (Bluetooth) | €299 |
| Galaxy Watch 7 44mm (Bluetooth) | €329 |
| Galaxy Watch 7 40mm (LTE) | €399 |
| Galaxy Watch 7 44mm (LTE) | €429 |
Where to buy it:
Promotions: Regularly on promotion (reductions of €30-50 during commercial periods).
Honestly : The Galaxy Watch 7 is expensive for what it offers. At this price, you can have:
The Galaxy Watch 7 is especially justified if you have a Samsung phone and want optimal integration.
There Samsung Galaxy Watch 7 is a great smartwatch, but not perfect. It excels in design, display and health monitoring, but suffers from disappointing battery life and limited iPhone compatibility.
✅ Recommended if:
❌ Avoid if:
7.5/10 – A very good connected watch, but the limited autonomy and the high price prevent a higher rating.
The model Bluetooth uses your phone's GPS for trips and requires your phone nearby. The model LTE has built-in GPS and can work independently with a 4G connection. LTE costs €100 more and consumes more battery.
Yes, it has waterproofing 5ATM (50 meters). We tested in a swimming pool and no water infiltrated the watch. You can swim and snorkel, but no scuba diving.
With normal use (screen always on, 1-2 workouts per day), count 1.5 days before recharging. In sleep mode (screen off), you can reach 2 days. This is less than the 2 days announced by Samsung.
Technically yes, but with major limitations: no Apple Health synchronization, basic notifications, no response to text messages. If you have an iPhone, the Apple Watch Series 9 is a better choice.
Select “Pool swimming” mode so that the watch automatically detects lengths. The detection works well, but can sometimes add extra length if you are making quick turns.
For daily monitoring, yes. But for intensive training, a heart rate monitor remains more precise (difference of ±2-3 bpm vs ±8 bpm for the watch).
Only with Android. With an iPhone, you can read text messages, but not respond to them directly from the watch.
The included sports band is comfortable and breathable. For daily use, it is sufficient. If you want a more premium look, Samsung offers leather or metal straps (€30-80).
Only LTE model. The Bluetooth model (more common and less expensive) uses your phone's GPS.
From €299 for the 40mm Bluetooth version. Prices vary depending on promotions and resellers.
There Galaxy Watch 7 is a premium smartwatch with an excellent AMOLED screen, comprehensive health tracking and an elegant design. It excels at swimming and golf, and the interface is smooth. However, the battery life is disappointing (1.5 days in real use), the price is high (€299-429), and iPhone compatibility is limited. Recommended especially if you have a Samsung phone and you don't charge your watch every day. Otherwise, consider a Garmin (better battery life) or an Apple Watch (better ecosystem).
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