Never owned an Apple Watch before but recently purchased a mint condition Series 1 42mm on eBay for £190. I've only ever actually owned one smart watch previously, the Moto 360, which I sold after 2 days. My thoughts below. Battery Life: It was on charge overnight last night, I woke up and put it on my wrist at around 6.40. I took it off at 23:00. So that's over 16 hours of use and when I put it on charge tonight it was at 69%, now that's impressive. Usage wise, I've been viewing and replying to WhatsApp, iMessage and Facebook notifications. Heartbeat monitoring every now and then and Apple Pay. No calls. All motion stuff enabled. Positives: - I love the ability to change straps and purchase cheap ones from the likes of Amazon, below you can see the leather one I prefer. - Having notifications on my wrist is fantastic, I spend a huge part of my day in meetings or on the move to different teams. It's great to be able to quickly check them without bringing out my phone, which can be seen as rude by some. Especially when I'm in 1 on 1 conversations. Also when taking son to cinema this evening to watch Fantastic Beasts, I was able to discreetly check and respond to messages. - It's an incredibly smooth experience, enjoyed checking my bank balance with it and also used it 3 times for Apple Pay today. - The fitness stuff is laid out really well, this is something I'll use more in the future - part of my reason for getting it as a motivator. - Hardware is perfection, it looks and feels nice.. Heart Tracking was accurate, I actually have another heart monitor to compare, finger based one. I take beta blockers (I don't have a heart problem, but I take them due other medication raising my heart rate). Very handy for me to have it on my wrist for a quick check. Negatives: I'll be honest, I'm struggling to find any... Ok, on occasion it could be a bit faster, it's a very smooth experience but not instantly responsive for all apps. My main criticism is the cost, while I know I paid less at £190... At that price or £299 it's still an expensive thing for what it does... For me personally, it's worth it purely for the notifications and ability to reply. As it fits in so well with my work life. I'd argue though that for most, taking your phone out of your pocket will do. For example, when I bought the Moto 360, one the integration wasn't as nice but my work / day to day didn't have as much of a need for it... If fitness tracking and notifications on your wrist is going to benefit you, buy this. It's worth the price of admission... If not, save your money. It'll be something you'll think is cool initially but then see as relatively pointless later.