Fitbit Sense 2 Health and Fitness Smartwatch with built-in

Fitbit Sense 2 Health and Fitness Smartwatch with built-in GPS, advanced health features, up to 6 days battery life – compatible with Android and iOS.




Size: | Small |
Dimensions: | 4.03 x 4.03 x 1.12 cm; 200 Grams |
Brand: | Fitbit |
Model: | FB521SRWT |
Colour: | Lunar White/Platinum Aluminium |
Pack Quantity: | 1 |
Batteries Included: | 1 Lithium Ion batteries required. (included) |
Manufacture: | Fitbit |
Age: | Youth |
Department: | Unisex |
Dimensions: | 4.03 x 4.03 x 1.12 cm; 200 Grams |
Quantity: | 1 |
Size: | Small |
This is a replacement for an older Fitbit that has given me super service, more info on this one, easy to connect to the phone. Fair price for what it does
Battery life is great unless you use Whats App notifications from your phone. If you get loads of Whats App messages, battery life can be 24 hours.
I have it on all the time. Amazing how it tracks your sleep, your steps and exercises. Has certainly gone a long way in helping me become a better me in many aspects.
I love this watch – has all the features I want. However, my last one only lasted 18 months so I’ll wait and see
I had an old Versa and decided to upgrade it to a Sense 2 and don’t regret that at all. The new Sense looks so much smarter with a clearer display. And the biggest bonus was the battery life between charges. I’ve had the watch for 7 days now and have only charged it once right at the beginning. Love the Sense 2.
Bought this as the Sense 1 I had always had battery issues. I tried replacing it twice, but the battery still wouldn’t last longer than 2 days. Decided to pay extra few pounds and try Sense 2. Soooo much better. This one lasts me 7 days easily. Very happy with my purchase.
Very good upgrade from previous Fitbit watches.
Personally I like the automatic exercise tracking (If you’re walking and start running it recognises this and automatically tracks the difference) and the sleep analytics.
ECG scanner is great along with blood oxygen saturation etc.
Not too big on the wrist.
No strange effects even when wearing it 24/7 as with previous devices (Rash, almost dead arm and tingling sensation).
Common fault with charger but when contacting Fitbit via live chat they immediately dispatched a replacement charger and strangely mine wouldn’t work with a Samsung plug but works perfectly with an Apple plug.
Overall I’m very happy with the purchase/upgrade. A great watch for anyone looking to track health and fitness.
Bought this as a gift and husband delighted with it.
This never happened before in my life.
Will order new leather strap.
First off battery life is great – I get the best part of a week on a single charge. And if I put it on the charger it’s full again in less than half an hour. As much as I like the look of the samsung galaxy watch, having to charge your watch every day seems useless to me, especially if you travel and need to carry yet another charger to do that.
Health stats are really good. Worth noting that you need to pay for fitbit premium to get some stuff like mental health stats (anxiety etc) but to be honest these don’t seem very useful anyway.
I didn’t expect to care much about phone integration but I find it really useful to get email and message notifications on the watch, so that’s a plus. Apparently you can set up google pay but I’ve never seen the point of that. Probably it’s more important (maybe) when your phone is in a bag rather than a pocket so fishing it out is more of a pain.
I personally don’t like the silicon straps as they catch on my skin when I’m moving, so I got a soft velcro one which is great – I don’t feel it at all even when sleeping. By the way they provide large and small straps in the box, which is good too as I have pathetic wrists that don’t work well with long straps.
All in all, I’m really pleased with this purchase and I’ve gone from being someone who only wears watches on special occasions to wearing this every day and I never feel that I’m wearing it. Only caveat is that I paid significantly less than the standard 269 price and I’m not sure I’d be so convinced at that price.
Battery Life – since unboxing, I actually didn’t charge it straight away as I wanted to use it ASAP. I wore it all day Friday and tracked my sleep overnight. I then ran a 12k trail run using the full screen brightness. This only ate 12% of battery. So a full marathon would be less than 50% battery with full features running. Since charging yesterday properly, I’d say it uses 12% battery per day including sleep, so the 6 day claim appears to be legit. I’ve seen others complain about charging, never had this, just make sure you use a decent USB charger with strong output and not some basic multi charger from a supermarket.
Running App – You can see from my pics how the fitness tracking looks whilst working out and finishing. It’s so clean and helps you with the basics. For example, I run too fast and always warns me when I am in my Peak heart rate (fine for someone my age but in time, I will have to start slowing my pace and reducing).
The Fitbit App also exports all my run data directly to Strava automatically when I finish a run.
Super comfortable – the actual changes to size are minor mm changes, but they are significant in comfort. For a large screen watch, it fits so flush to your wrist and just feels natural. The ECG sensors are now in the bezels of the glass, rather than the frame so not only does it look nicer, it’s far more comfortable to take readings.
Tidy Layout – I’ve seen reviewers talk about this and will agree. The layout is so clean and user friendly, even copying how Wear OS functions. Swipe down for settings, swipe up for notifications and messages, swipe left and right between tiles and apps. The tiles are completely customizable in the Fitbit app. I’ve got mine set up to show fitness and health data by swiping right and daily work stuff like calendar, weather and alarms to the left. So clean.
Sync with Nest Hub – I set up my Fitbit app to show my sleep and health dat on my Nest Hub 2nd Gen too, so that I can check my stats and data from there or ask voice assistant about my health data.