The Pebble Smartwatch series was first released in 2013 (Pebble Smartwatch) and has made different iterations since its debut. It received the majority of its initial funding through crowdfunding. It can connect to either an Android or iOS device.
This is entirely your decision, no one can advise you on this
without knowing much more about your needs and financial
circumstances (which you provide no information about) and even
with such information most responsible people would hesitate to
give advise that you might regret acting on later.