OnePlus 15T Readied with Massive Battery Upgrade as Ace 6 Ultra Surfaces

OnePlus appears to be finalizing its next compact flagship, the OnePlus 15T, while simultaneously preparing a new performance-focused Ace 6 Ultra model. According to leaks from trusted sources on Weibo, the 15T represents a significant upgrade over last year's OnePlus 13T, particularly in battery capacity and charging capabilities.

What's New in the OnePlus 15T Leaked details of the OnePlus 15T. (Image source: Weibo - machine translated)

The 15T reportedly features:

• Snapdragon 8 Elite Gen 5 processor (same chipset as standard OnePlus 15)
• 6.32-inch flat display with 1.5K resolution and slimmer bezels
• Dual 50MP rear camera system (primary + telephoto) - notably omitting the ultrawide lens
• 16MP front-facing camera
• Industry-leading 7,500mAh battery with wireless charging support

The battery upgrade is particularly noteworthy - a 20% capacity increase over the OnePlus 13T's 6,260mAh cell, plus the addition of wireless charging which was absent in its predecessor.

How It Compares Compared to the OnePlus 13T, the 15T offers:

Feature	OnePlus 13T	OnePlus 15T (rumored)
Battery	6,260mAh	7,500mAh
Charging	Wired only	Wired + Wireless
Display	6.32" 1.5K	6.32" 1.5K (slimmer bezels)
Processor	Snapdragon 8 Gen 4	Snapdragon 8 Elite Gen 5
Camera	Triple rear	Dual rear (50MP+50MP)

Enter the Ace 6 Ultra OnePlus Ace 6 Ultra leak from tipster Smart Pikachu. (Image source: Weibo - machine translated)

Simultaneously, tipsters have revealed details about the OnePlus Ace 6 Ultra, positioned as a sub-flagship model:

• 6.78-inch 1.5K OLED display
• MediaTek Dimensity 9500 chipset (flagship-tier performance)
• Premium build quality according to hands-on reports
• Large battery capacity (exact size unspecified)

The Ultra model sits above the standard Ace 6 in OnePlus's performance-focused lineup, potentially competing with premium mid-range devices from rivals.

Who These Phones Are For

• The 15T targets compact phone enthusiasts wanting flagship performance without compromising on battery life. Its smaller form factor combined with massive battery capacity addresses a key pain point for power users.
• The Ace 6 Ultra appeals to performance-focused buyers seeking premium specs at competitive prices, potentially offering flagship-tier MediaTek performance in a larger form factor.

Availability & Timeline The OnePlus 15T is reportedly scheduled for launch between late March and early April 2026 in China. Recent rumors suggest it might remain China-exclusive, potentially launching globally as the OnePlus 15s. The Ace 6 Ultra could arrive alongside the 15T or follow in May, mirroring its predecessor's release pattern.

Sources: 数码闲聊站 on Weibo, 智慧皮卡丘 on Weibo