Battery improvement recommendation
I have the Q10 and my wife has the Z10. A few weeks ago, I bought the OEM flip case for my Q and it made a big improvement on the already great battery life. So I bought her the Z10 flip shell case with the battery saving feature. She's had a meaningful improvement in her daily battery life. And I think these cases both look great and feel good in the hand.
My Q10 starts its day at 6am and toils hard all day driving my business with phone calls, emails, texts and BBM, with some light browsing. It's 11pm and the battery is at 45%.
These cases aren't expensive and I'm impressed. Well worth considering, especially for the Z10 people who have battery concerns.