After wearing the Fitbit Flex 2 daily for months, I'm convinced it's the 'little black dress' of fitness trackers – simple, versatile, and surprisingly durable. The waterproof feature is legit – I've worn it through showers, laps in the pool, and even a surprise downpour without issues.

The vibration alerts are stronger than expected! As someone who sleeps through earthquakes, I was shocked when its silent alarm actually woke me up. The call/text notifications make me less glued to my phone, though the step counter sometimes gets overexcited (apparently vigorous hand gestures count as 'steps').

Swapping bands is stupidly easy – I've got a rainbow collection for different moods. But be warned: its tiny size makes it prone to disappearing acts. Mine once went MIA for days before turning up inside a sweater sleeve.

Battery life could be better (2-3 days max), and sleep tracking feels basic compared to newer models. Still, for $80-ish? It's a reliable minimalist tracker that won't scream 'tech geek' at business meetings.