Samsung Galaxy Watch4 40mm 4G Smart Watch, 3 Year
Samsung Galaxy Watch4 40mm 4G Smart Watch, 3 Year Manufacturer Warranty, Black (UK Version)
The Watch That Knows You Best
Your workout buddies have your back
Enjoy every step you take with your friends and family with the Galaxy Watch4²¹. Track your steps and compete with friends in a fun competition through a live message board. Challenges come with commemorative badges and a point system to make exercise fun, motivating, and socially rewarding.
Name a workout. It can track it
Count steps, check calories, and stay on the grid with GPS. Galaxy Watch4²¹ detects physical activity to track your routines and supports more than 90 exercises.⁸
All the data your heart desires
The Samsung BioActive Sensor measures ECG and blood pressure in real time. The sensors quickly check your blood pressure. You can also check abnormal heart rate and rhythm through ECG.⁹ ¹⁰ ¹¹ ¹²
The most holistic sleep analysis on Galaxy watch
The sleep tracker detects and holistically analyzes your sleep stages while you rest. Improved measuring options let you check your blood oxygen levels and snoring patterns. ¹³ ¹⁴ ¹⁵ ¹⁶ ¹⁷ ¹⁸ ¹⁹
Galaxy Watch
 Galaxy Watch4²¹ |  Galaxy Watch4 Classic²¹ |  Galaxy Watch Active2 |  Galaxy Watch3 | |
| OS | Wear OS Powered by Samsung | Wear OS Powered by Samsung | Tizen | Tizen |
| Display | Super AMOLED | Super AMOLED | Super AMOLED | Super AMOLED |
| Size/Weight | 44″(30.3g) / 40″(25.6g) | 46″(52g) / 42″(46.5g) | 44″(24g) / 40″(37g) | 46″(53.8g) / 41″(48.2g) |
| Memory | 1.5 GB + 16 GB | 1.5 GB + 16 GB | 1.5 GB + 4 GB | 1 GB + 8 GB |
| Material | Armour Aluminum | Stainless Steel | Stainless Steel | Stainless Steel |
| Sensor | BA Sensor, Compass | BA Sensor, Compass | Photo Plethysmography | Photo Plethysmography |
| PUI | 2 Button, Digital Bezel | 2 Button, Rotating Bezel | 2 Button, Digital Bezel | 2 Button, Rotating Bezel |
| Battery | 361mAh | 361mAh | 340mAh | 340mAh |
Plays well with others
The Galaxy Watch4 comes with Wear OS Powered by Samsung, giving you seamless connection with Samsung Galaxy devices.²⁰
Galaxy ZFlip3
Folds into your pocket. Tucks into your purse. Slips into your skinniest jeans. Then you can take it out and it flips open into a full-screened 5G smartphone.
Galaxy Buds2
Get lost in what you love. Galaxy Buds2 opens a new world of audio experience with well-balanced sound, unmatched comfort fit, ANC, and seamless connectivity to your phone and watch.
1. Availability of colours, sizes, models, and bands may vary by country or region. 2. DO NOT measure your body composition if you have an implanted pacemaker or other implanted medical devices. 3. DO NOT measure your body composition if you are pregnant. 4. Measurement results may not be accurate if you are under 20 years old. 5. Intended for general wellness and fitness purposes only. Not intended for use in detection, diagnosis, treatment of any medical condition or disease. The measurements are for your personal reference only. Please consult a medical professional for advice. 6. Availability of BIA may vary by country or region. 7. All features and UI are subject to change. 8. Galaxy Watch4 is rated as IP68. Based on test conditions for submersion in up to 1.5 metres of freshwater for up to 30 minutes. 9. ECG and BP feature only to be used by 22 years+. For accurate BP readings, a calibration is required every 4 weeks by BP monitor & arm cuff. Requires a Galaxy smartphone running Android 7.0 or above. 10. Users should measure their blood pressure when at rest, as they would do with a traditional cuff, and refrain from measuring when they are working out, smoking, or drinking. 11. Availability of feature and app may vary by region, connected device, SW version and carrier. 12. Measured blood pressure history can be reviewed within the Samsung Health Monitor app on a paired smartphone. 13. The Advanced Sleep feature is for fitness and wellness purposes only and not intended for use in detection, diagnosis, treatment of any medical condition or disease. 14. The measurements are for your personal reference only. Please consult a medical professional for advice. 15. Availability may vary by country or region. 16. The Galaxy Watch4 must be paired with a smartphone to use the sleep management function. 17. For best results in detecting and recording snoring, place your smartphone on a stable surface near your head with the bottom of the smartphone pointed to your head 18. The default setting for snoring detection is off. Users can turn the setting on through their smartphone at any time using the Samsung Health App 6.18 version or above. 19. Advanced insights from the National Sleep Foundation is only available on a smartphone paired with the Galaxy Watch4. 20. Buds Controller is compatible with Galaxy Buds+, Galaxy Watch4, and their respective following models. 21. Requires smartphone running Android 8.0 or above with Google Mobile Services (GMS)
| Dimensions: | 29.2 x 6.2 x 3.2 cm; 180 Grams |
| Model: | F-MR865FZKAAMA |
| Batteries Included: | 1 Lithium Ion batteries required. (included) |
| Manufacture: | Samsung |
| Dimensions: | 29.2 x 6.2 x 3.2 cm; 180 Grams |
| Origin: | China |
This model has a smaller strap and a smaller clock face for teenagers however it my husband’s wrist with no issues but is on last hole. Generally galaxy watches battery life nowhere near as good as fitbit. Might have more options but fitbit might be more accurate especially for sleep but who really knows. I changed from fitbit because they broke down.
Good battery life. Nice features and works seamlessly with Samsung
Love this watch, there’s so much you can do with it. Still learning as not a tec guru but easy to use once I got the hang of it.
So many more features that I have yet to learn but know the basics.
Love this watch! All features are great, though has a short battery life.
Needed a means of checking distance walked each day – doing a sponsored walk for charity. This watch offered this facility along with lots of other useful measurements, sleep, stress etc. Really like the watch, it will keep me on my toes and moving once the sponsored element comes to an end. What a positive though
I brought this as a gift in February. I wear it every day! The charge does hold so well, but does charge quickly.
I don’t have it on tight, but I have notice and indent in the wrist that can ache on occasion.
Stil, i get accurate readings and notifications quickly.
Happy out with this watch, checked with Samsung support and is the UK and Ireland model for the watch so everything works as intended. Battery life is not great on these but it’s functions make up for it immensely. Well worth it.
Just arrived, but connected instantly and working my way through right now. But seems really good I have one I paid 84.99 for from the US and should have just fot this to begin with. All I hear is they’re ot worth the money. Well I’ve had 3 and this is the only one that does what it says.
Very pleased with the watch suits my needs although perhaps basic for the more demanding.Very happy with purchase
Uk model better then eu I had battery not best but if not bothered charging every night its fine and true quality smart watch
super watch, much better than the samsung 3 I had before. Build is very nice. looks great and has a tonne of functions. battery seems to be ( a day of hard use) as its new i use it a lot. The strap is better than that on the Samsung 3 i had, softer plastic. Also screen is bigger than the version 3. impressed so far.
This is just my experience, of course, yours may well differ. For the first three days I watched the battery drop from 100% to 5% in less than 12 hours, without even using one of the exercise trackers. I reset the device and tried again, but it made little to no difference. I did not have “always-on display” on. I was about to send it back but read a few forum posts and changed the watch face to something that still had all the info I wanted, but without so much colour. I also turned off the wi-fi and the constant heart monitoring, though kept all the sleep-tracking on. Battery life improved massively. I switched back to the other watch face and, again, the battery started draining. Some of the included watch faces, it seems, are battery guzzlers. I downloaded one that works well and all seems well. I even tried switching heart monitoring back on and didn’t really notice any difference in battery life.
Week or so in and I’m finding it’s just the job for me. If you’re tracking half marathons every day you may find yourself topping up the battery. I can’t give it 5 stars because even after tweaking, the battery life is not as good as my Galaxy Watch Active 1 was when it was new, and that’s unforgivable. However, it’s a comfortable fit, the screen is great (and bright) and it’s rarely laggy. Good news is that the old charger works with it so I have one at work and one at home, should I need to top up.
Downpoint is the battery life. I know I can cut it back by turning off a few functions but had them on my old Amazfit watch and the battery was much better on that. This battery is lasting about 1 and a half days (old watch lasted about 10 days).
Sleep tracking isn’t great on this either. It does catch sleep but not full amou