On to the meaty stuff. OnePlus says its close collaboration with Qualcomm enabled several improvements on the OnePlus 12 over its peers using the same Snapdragon 8 Gen 3 chipset. It calls this “CPU-Vitalization,” which purportedly offers lower power consumption and thereby less battery drain when performing the same kinds of tasks, plus smooth performance even after years of usage.
You'll hear similar terms in the marketing of the OnePlus 12, from the “Trinity Engine” and RAM- and ROM-Vitalization to Hyper Touch … yawn. All you need to know is that this is a very snappy smartphone. Launching apps and moving between them is buttery smooth. After 45 minutes of Genshin Impact at its highest graphical settings, the handset was relatively warm but didn't have overtly hot spots. And in that time it only lost around 10 percent of battery life.
Compared to the new Samsung Galaxy S24 Ultra, I noticed the OnePlus 12 delivered slightly smoother gameplay in the same game and was marginally cooler to the touch, and it also did a better job of spreading the heat across the device; the S24 had more hot spots. Outside of this graphically demanding game, the OnePlus 12 and Galaxy S24 Ultra were nearly identical in performance. Phones are really fast and responsive nowadays, so most day-to-day tasks aren't going to feel too different when comparing devices sharing a processor, CPU-Vitalization or not.
I can't speak for how this phone will perform years from now—you'll have to take OnePlus' word—but I can tell you that OnePlus is committing to four Android OS upgrades and five years of security updates, which is pretty darn good if you plan to hold on to your device for a long time. It's still not as good as the seven years of software support Google and Samsung are now offering, though.
Battery life has been impressive. OnePlus stuffed a 5,400-mAh cell in here, and I can easily eke out two days of average use. On one particular day when I spent a lot of time on my phone, taking photos and videos, navigating, and streaming music, I was left with 52 percent by bedtime. Yay! Better yet, you can always go from zero to 100 within 30 minutes if you use OnePlus' included charging cable and adapter. You can also go wireless. Yes, OnePlus has finally listened and brought back wireless charging. However, if you want fast wireless charging, you'll need to pair the OnePlus 12 with the company's wireless charger, which can recharge it to full in under an hour.
The only gripe I have with the display is the curved edges. Samsung and Google have both started ditching these curved screens, and I am all for it. Sure, curved displays look cooler, but it's nicer to hold a phone with full metal edges that aren't a part of the screen. The phone won't mistake your grip for other touch interactions, which is certainly something that has happened on the OnePlus.