Upcoming Smartphone Launches in December 2025: Price, Specs, Launch Dates and Full List - Vivo, Oppo, OnePlus

With the year drawing to a close, December 2025 is shaping up to be an exciting month for smartphone enthusiasts in India. Following major global releases, including premium flagships from OnePlus, Xiaomi and Oppo, brands are now turning their attention to the Indian market with a fresh wave of mid-range and high-end devices. From camera-centric flagships to performance-driven all-rounders, several noteworthy models are set to make their debut this month. Here’s a comprehensive look at the most anticipated launches.

Upcoming Smartphone Launches in December 2025

OnePlus 15R to Launch in India on December 17, 2025

OnePlus is gearing up for one of its biggest India-focused releases of the year with the OnePlus 15R. Scheduled for launch on December 17, the handset will be among the first to feature Qualcomm’s Snapdragon 8 Gen 5 chipset. It will be sold exclusively through Amazon, arriving in two colour options: Charcoal Black and Minty Green.

The company has teased a robust build with extensive durability ratings, IP66, IP68, IP69 and IP69K, offering protection against dust and high-pressure water. The design includes a rectangular dual-camera module and side-mounted power and volume keys. Out of the box, the device will run OxygenOS 16 based on Android 16.

Vivo X300 Series Arriving on December 2, 2025

Vivo is kicking off the month early with the launch of the Vivo X300 and X300 Pro on December 12. Both models will be available through Vivo’s online store and come powered by MediaTek’s 3 nm Dimensity 9500 chip. Vivo has also integrated its Pro Imaging VS1 and V3 Plus chips for enhanced computational photography.

The Vivo X300 Pro will feature a Zeiss-branded camera setup comprising a 50 MP Sony LYT-828 primary lens, a 50 MP Samsung JN1 ultrawide camera and a powerful 200 MP HPB APO telephoto sensor. The series will run on OriginOS 6, promising smoother performance and better power efficiency.

Realme P4x 5G Launching on December 4, 2025

Realme is set to introduce the Realme P4x 5G on December 4, with availability confirmed via Flipkart. The device will be powered by the MediaTek Dimensity 7400 Ultra chipset and feature a 144 Hz display, a highlight for users who prioritise fluid visuals.

The Realme P4x 5G also stands out with its massive 7,000 mAh Titan Battery, paired with 45 W wired fast charging. To manage heat efficiently, Realme has equipped the phone with a 5,300 sq mm vapour chamber, making it a promising option for gamers and heavy users.

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OnePlus Ace 6T Expected in China

While OnePlus prepares the 15R for India, the brand is also expected to unveil the OnePlus Ace 6T in China this month. Although the exact launch date remains unconfirmed, the device is rumoured to be a rebranded variant of the 15R. It is expected to feature the Snapdragon 8 Gen 5 processor and arrive in black, green and violet hues. Promotional teasers suggest a flat display, slim bezels and a square dual-camera module.

Oppo Reno 15C Teased for December Reveal

Oppo has hinted at the upcoming Reno 15C, following the launch of the Reno 15 and Reno 15 Pro. While full specifications are still under wraps, leaks suggest the device may sport a 6.59-inch 1.5K display with a 120 Hz refresh rate. It is expected to be powered by Qualcomm’s Snapdragon 7 Gen 4 chipset.

The Reno 15C may also offer an impressive camera configuration, including a 50 MP Sony IMX600 primary sensor, an 8 MP ultrawide lens and a 50 MP Samsung JN5 telephoto unit.

With multiple premium and mid-tier smartphones arriving in India, December 2025 promises plenty of options for buyers planning an upgrade.

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