Pebble was my watch for years until Garmin released the vivoactive HR. While Garmin loses style points compared to Pebble, it has much better features and durability.

The first weekend I had it, I tested it by wearing it on a Tough Mudder...it survived without a scratch. 2 years later and the Garmin battery life is still over a week. If you miss Pebble and want something still being updated, look at the Garmin watches (but I wouldn't go any lower than the current vivoactive3 line)