The OnePlus 15 & Open 2: Defining Performance in 2026

OnePlus has always been the brand for speed enthusiasts, but in 2026, they are poised to become the kings of endurance. While fans have been searching for news on the "OnePlus 14," industry insiders confirm that OnePlus (like many Chinese manufacturers) will likely skip the number 4 due to tetraphobia (the superstition that the number 4 is unlucky).

Therefore, the next flagship killer will be the OnePlus 15, arriving alongside the highly anticipated and long-delayed OnePlus Open 2.

Scheduled for early 2026, these devices are rumored to introduce battery technology that could change the industry forever, alongside raw power from the next-gen Snapdragon chip. Here is your definitive guide to the 2026 OnePlus lineup.

1. The Name Change: Where is OnePlus 14?

If you are waiting for the OnePlus 14, you will likely be waiting forever.

• The "Tetraphobia" Skip: In Chinese culture, the number 4 sounds like the word for "death." It is standard practice for brands like OnePlus, Oppo, and Vivo to jump straight from 13 to 15.

• The Release Window:

  • OnePlus 15: Expected global launch in January 2026.

  • OnePlus Open 2: Rumored for Q1 2026 (possibly February/March), missing the 2025 window entirely to refine its hinge technology.

2. OnePlus 15: The Battery King

The biggest headline for the OnePlus 15 isn't just the processor—it's the battery life.

The "Glacier Battery" Revolution

OnePlus has been heavily investing in Silicon-Carbon (Si/C) battery technology, marketed as "Glacier Battery."

• Capacity: Leaks suggest the OnePlus 15 will pack a shocking 7,000 mAh battery.

• Form Factor: Thanks to the higher density of Silicon-Carbon, this massive battery won't make the phone a brick. It will likely remain as thin as the OnePlus 12/13 but hold 30% more charge.

• Charging: The classic 100W SuperVOOC will return, charging this mammoth battery in under 35 minutes.

Performance

• Chipset: Powered by the Snapdragon 8 Gen 5, offering a 40% GPU boost for gaming.

• RAM: Up to 24GB of LPDDR6X RAM in the top-tier model, making it an emulation and multitasking monster.

3. OnePlus Open 2: Worth the Wait?

The original OnePlus Open was named "Foldable of the Year" by many reviewers. The successor, the OnePlus Open 2, has been delayed to 2026 to ensure it retains that crown against the Pixel Fold and Galaxy Z Fold 8.

The "Paper Thin" Design

The goal for the Open 2 is simple: make it feel like a normal phone when closed.

• Thickness: Rumors point to a folded thickness of just 9.x mm, making it possibly the thinnest foldable available globally.

• Hinge: A newly redesigned "Flexion Hinge" uses liquid metal to reduce weight and completely eliminate the crease.

Wireless Charging Returns

The biggest omission from the original Open was wireless charging. The Open 2 is confirmed to feature 50W AirVOOC wireless charging, fixing the only major flaw of its predecessor.

4. Cameras: The Hasselblad Question

OnePlus has relied on its partnership with Hasselblad for color science for years.

• OnePlus 15: Will feature a Triple 50MP Setup (Main, Ultra-Wide, and Periscope). The periscope zoom is expected to get a sensor size upgrade to improve low-light zoom shots.

• OnePlus Open 2: Will likely share the same camera system as the OnePlus 15, meaning foldable users won't have to sacrifice camera quality.

5. Software: OxygenOS 16

Both devices will launch with Android 16 and the new OxygenOS 16.

• "Fluid Cloud": An expansion of the notification capsule (similar to Dynamic Island) that works across the status bar for more apps.

• Open Canvas 2.0: The multitasking system on the Open 2 will get even better, allowing for "triple split" windows that can be saved as permanent workspace presets.

6. Conclusion: The Enthusiast's Choice

While Samsung and Google focus on AI gimmicks, OnePlus is focusing on the fundamentals: Battery, Charging, and Speed.

If you are a power user who hates charging your phone twice a day, the OnePlus 15 with its 7,000 mAh cell looks like the dream device. And for foldable fans, the OnePlus Open 2 promises to be the most refined, thinnest, and premium foldable of 2026.