The Fitbit Air is a good wearable weighed down by a chatty AI "coach"

Key points

• Smartwatches can track your health stats, but they also do a lot of other things you might not always want or need.
• The $100 Fitbit Air tracker ditches the screens that have become common on people's wrists, leaving behind a tiny puck of health sensors you can often forget you're wearing.
• You will not, however, forget that Google's new health platform is built around AI.
• The Air has no speaker, and there's only one LED on the side to indicate battery level.
• You can double-tap the tracker to check the level, and that's about the end of on-device features.