So far, Ray-Ban Meta has been something of a default answer in the smart glasses category, and nothing really has threatened its position. There's a new entrant now — Samsung, which, in partnership with Google, has developed a new pair of glasses. Currently, Ray-Ban Gen 2 Meta smart glasses are rated for up to eight hours of runtime with typical use. This shows that here too, the Samsung glasses are one-upping Meta's. Meta's Gen 2 case is good for 48 hours, which works out to about six full charges.