The Meta Ray-Ban Display’s neural wristband isn’t sold separately, but if you lose yours, you can buy a new one for about $200.

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Get a great machine for cheap with our top-rated picks for budget laptops all costing $1,000 or less. There’s a lot of junk on the market — these are the best smart frames that are worth your money.

Top fitness brands are launching screenless trackers to keep you focused, not distracted. I tested the Polar Loop to see if it delivers on its promises.