- The auto-on with wrist flick is really unreliable. It is a pain in the neck. Plus we have to raise our wrist pretty high to trigger it, which is again a real pain if you are carrying shopping or something heavy.
- I'm happy to charge my Vivosmart 4 every night! So I'm not worried about the battery going flat with an always-on display
- I can adjust the brightness right down if necessary, in order to make the battery survive the screen being always on
- Finally, I have actually turned the heart rate monitor off (because I can feel it causing pain to my wrist). I'm not complaining, I'm still happy I got this Vivosmart 4. But it means my battery has got loads of spare capacity to give me an always-on display, which is something I really need!!