If you luv your Q10 as much as I do, this is the Otter Box Defender would be the right match to protect. Excellent protection, second to none, but it's still possible to accidentally break (my holster did when the holster+phone fell off my belt). No sweat! Excellent customer service prevailed with a quick replacement.
For the next design hopefully they will take into account that one could regularly exchange the battery (I have a separate charger so that I can keep on working). The phone rubber protector has stretched a bit, so for your next Defender Otter Box there may be a rubber that better retains its shape, and a holster that can take an accidental fall (one of the fingers of the claw broke, as mentioned).
This is my first of possibly a lifetime of Otter Boxes to protect whatever phone I happen to have. Excellent customer service, thanks!
Pros: High quality, Durable, excellent customer service