I have the Chronos and it's not so great, it's mostly just a development tool while Sony's seems to be designed as a wearable. I also have the LiveView (Sony's previous attempt)
Note to wearable manufacturers:
- size: Ti's is bulky, Sony seems even thicker
- battery: Chronos lasts about a day (non rechargeable) with things like wireless and accelerometer turned on
- weather proofing: I would expect to at least withstand hand sweat and temperature variations. Choronos is just a dev tool w.r.t. this
- screen: Chronos is barely readable in daylight. LiveView is almost not readable, the initial plan was to have it display GPS instructions on bike
- connectivity: bluetooth is everywhere, why not use it? TI uses their proprietary CC11xx protocol
- looks: debatable, but the elastic band strap on the LiveView is inexcusable
Still waiting for an open-platform watch that has e-ink (or the Sharp displays) , rechargable/solar power options, BT 4.0 and can be worn without shame.