On days with gentle use, I’ve 70 p.c left by bedtime. After I spent extra time on the cellphone, utilizing it for music streaming, navigation, and Instagram Reels-ing, I usually ended with round 60 or 50 p.c. I might depart it on my nightstand with out bothering to plug it in, a refreshing change of tempo. Over the course of two days, I hit a tremendous 10.5 hours of screen-on time.
This may be one of the best battery life on a flagship smartphone in the present day within the US, particularly if you pair it with the extremely quick recharge occasions. OnePlus stays one of many solely corporations to incorporate a charger within the field—largely as a result of it is the one technique to reap the benefits of its SuperVooc fast-charging know-how. I used to be in a position to ramp from 15 to 80 p.c in half-hour (50 p.c in quarter-hour). It is exhausting to fret a couple of useless cellphone should you do not thoughts holding the cumbersome charger in your individual (is a folding prong an excessive amount of of an ask?).
However there’s all the time a compromise someplace. When you’re a fan of wi-fi charging and are particularly thinking about Qi2 smartphones that use magnets (like Apple’s MagSafe) for extra handy and quicker charging, you may be dissatisfied right here. The OnePlus 15 helps wi-fi charging, however solely the usual Qi know-how. OnePlus is promoting magnetic circumstances as a salve, however not like Samsung’s present crop of top-end telephones, this does not even flip it right into a Qi2 Prepared cellphone. It’ll solely cost at gradual Qi wi-fi charging speeds. (You can purchase OnePlus’ proprietary wireless charger to fast-charge, however that is a separate buy, and that wi-fi charger will solely recharge choose OnePlus units shortly.)
The beefy battery and super-fast wired charging could outshine the lackluster wi-fi charging, however now it is time to speak concerning the second most spectacular feat of the OnePlus 15: efficiency.
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{Photograph}: Julian Chokkattu
That is the primary smartphone within the US to make use of Qualcomm’s Snapdragon 8 Elite Gen 5, a processor we’ll see in most high-end Android telephones in 2026. The benchmark numbers are wonderful. In a Geekbench 6 check, the OnePlus 15 is formally the primary cellphone to cross 10,000 in multi-core CPU efficiency, even besting the iPhone 17 Professional Max. Nonetheless, the iPhone nonetheless had a slight leg up in single-core efficiency (it is also typically extra environment friendly).
