UPDATED · News · 22 Mar 2026 · MTW News Desk
OnePlus has confirmed the OnePlus 15T full specs sheet ahead of its March 24 launch in China. This OnePlus 15T development matters. The compact flagship pairs a Snapdragon 8 Elite Gen 5 with a 7,500 mAh silicon-carbon battery and a dual 50 MP camera system featuring a periscope telephoto, all inside a 6.32-inch body that undercuts most 2026 flagships on size without cutting corners on internals.
Display: compact flagship dimensions
The 15T uses a 6.32-inch flat OLED panel at 1.5K resolution with a 165 Hz refresh rate and up to 1,800 nits peak brightness, according to GSMArena‘s full spec sheet. For anyone who finds the Galaxy S26 Ultra (6.9 inches) or iPhone 17 Pro Max (6.9 inches) too large, the 15T is the most powerful small-screen alternative available this year.
Processor, RAM, and storage
Under the hood, the 15T runs the Snapdragon 8 Elite Gen 5, the same chip inside the Samsung Galaxy S26 Ultra and other 2026 flagships. OnePlus pairs it with a proprietary Tri-Chip thermal management system designed to sustain peak performance without throttling. Our review methodology for sustained thermals will be central to how we evaluate this claim when we test the device.
RAM options are 12 GB or 16 GB of LPDDR5X, with UFS 4.1 storage from 256 GB to 1 TB.
OnePlus 15 rear showing telephoto and main camera lenses. Image: Maksdroider / Wikimedia Commons (CC BY-SA 4.0)
Camera: dual 50 MP with periscope telephoto
The rear system is a dual 50 MP setup. The primary sensor is a 1/1.56-inch wide-angle module with optical image stabilisation. The secondary lens is a 50 MP LUMO periscope telephoto offering 3.5x optical zoom, OIS, and 7x lossless zoom. A 32 MP front camera sits in a centred punch-hole on the display. 91Mobiles reports that early camera samples show strong daylight performance with natural colour rendering.
The absence of an ultrawide lens is a deliberate trade-off for the compact form factor. Whether that matters depends on your shooting habits, most casual photographers use the primary and zoom lenses far more than the ultrawide. For a deeper look at how AI processing affects photo quality, see our camera AI versus natural texture comparison.
Battery: 7,500 mAh in a compact body
The 7,500 mAh silicon-carbon cell is the standout specification. For context: the Galaxy S26 Ultra, a substantially larger phone, ships with a 5,000 mAh cell. The OnePlus 15 (the full-size sibling) packs a 7,300 mAh battery. OnePlus’s second-generation silicon-carbon battery chemistry enables higher energy density, more capacity in less physical space, which is why OnePlus can fit a cell this large into a 150.56 x 71.82 x 8.48mm, 194g chassis.
Charging supports 100W wired via SuperVOOC and 50W wireless. Based on our real-world battery testing methodology, a 7,500 mAh cell in a compact phone with a 1.5K display should comfortably deliver two full days of moderate use, a genuine rarity at any price point.
Durability and build
The 15T carries IP66, IP68, IP69, and IP69K ratings simultaneously. IP69K specifically certifies resistance to high-pressure, high-temperature water jets, a rating usually found on industrial equipment. For everyday use, this means the phone is effectively waterproof in any realistic consumer scenario. Colour options are Pure Cocoa (brown), Relaxing Matcha (green), and white, as confirmed by 9to5Google.
Availability and expected pricing
The OnePlus 15T launches at 7:00 PM China Standard Time on March 24, with China sales starting the following day. Pricing in China starts at 4,299 yuan for 12 GB + 256 GB and tops out at 5,699 yuan for 16 GB + 1 TB. PhoneArena reports that no global release date has been confirmed, though OnePlus typically brings its flagships to international markets within two to three months. The OnePlus 15 launched in the UK at £849. The 15T is expected to sit in a similar range, potentially slightly lower given its compact form factor. For more, see our latest news coverage. You might also read Samsung AirDrop Expands to Every Galaxy Phone From the Last Three Years and Apple Cannot Stop It.
We will publish a full hands-on assessment after the launch event. For buyers considering how compact flagships compare to full-size options, see our business travel phone guide and four-year upgrade path guide.
What the OnePlus 15T full specs sheet means for the March 24 launch
The OnePlus 15T full specs confirmation a week before launch is unusually disciplined for OnePlus. Historically the company has briefed regional press in dribs and drabs and let the leakers fill in the blanks, which always undermined the eventual launch narrative. Confirming the OnePlus 15T full specs in a single official drop puts the focus on the demonstrable performance numbers rather than the rumour-mill speculation, and removes one of the easier critiques tech reviewers tend to lean on with OnePlus launches.
Looking at the OnePlus 15T full specs in detail, the standout is the cooling solution rather than the silicon itself. OnePlus has historically struggled to keep flagship Snapdragons in their performance window for sustained workloads, and the new vapour chamber design with active heat-pipe routing is the most ambitious thermal solution OnePlus has ever shipped on a non-gaming phone. If the sustained-performance numbers actually hold up, the OnePlus 15T will outlast the Galaxy S26 in long gaming sessions, which is a genuinely meaningful real-world differentiator.
The pricing question still hanging over the OnePlus 15T full specs is what the UK street price actually lands at. The leaked European RRPs put the base SKU at six hundred and forty-nine euros, which historically translates to around five hundred and ninety-nine pounds at UK retail once the channel partners have done their thing. At that price the OnePlus 15T is a clear buy against any non-flagship Galaxy or Pixel, and a genuine consideration set against the Galaxy S25 FE. The March 24 launch will tell us which of those two interpretations is right.
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