Oppo K15s and K15x Launched: Massive 8,000mAh Batteries and IP69K Durability

Oppo has quietly expanded its mid-range K-series smartphone portfolio in China with the K15s and K15x, two new models prioritizing extreme battery capacity and structural durability. Arriving shortly after the high-profile launch of the flagship Find X10 lineup, these budget-friendly devices join the existing K15, K15 Pro, and K15 Pro+ to round out the company’s mid-tier offerings.

The Oppo K15s leads the new duo, built around a massive 8,000mAh battery engineered for longevity. Oppo claims the battery retains at least 80% of its capacity after 2,000 charge cycles—translating to roughly seven years of standard use. Beyond endurance, the K15s is highly ruggedized, boasting IP69K, IP69, IP68, and IP66 certifications alongside 15 military-grade environmental tests under the GJB150A-2009 standard.

Performance on the K15s is driven by a MediaTek Dimensity 6360 Max processor, paired with LPDDR4X RAM, UFS 2.2 storage, and a 4,300mm² vapor chamber cooling system. The front of the device features a 6.57-inch FHD+ AMOLED display with a 120Hz refresh rate, 1,400 nits of peak brightness, and an integrated optical fingerprint scanner. Imaging is handled by a 50-megapixel primary camera and an 8-megapixel front-facing sensor, both supporting 1080p recording at 60fps.

The more affordable Oppo K15x trades the AMOLED panel for a 6.75-inch HD+ LCD display operating at 120Hz. While it steps down to a MediaTek Dimensity 6300 chipset, it still packs an exceptionally large 6,500mAh battery with the same 45W SuperVOOC and UFCS fast-charging support found on the K15s. Durability remains a focus through an IP64 rating and Oppo’s diamond anti-drop architecture. The K15x features a 13-megapixel main camera, a 5-megapixel selfie shooter, and functional hardware extras like a 3.5mm headphone jack and expandable storage.

Both devices are currently exclusive to the Chinese market, with global availability yet to be announced.

Oppo K15s and K15x Specifications Comparison

Feature	Oppo K15s	Oppo K15x
Display	6.57-inch FHD+ AMOLED (120Hz, 1,400 nits peak)	6.75-inch HD+ LCD (120Hz, 1,125 nits peak)
Processor	MediaTek Dimensity 6360 Max	MediaTek Dimensity 6300
Memory & Storage	Up to 8GB LPDDR4X RAM / 256GB UFS 2.2	Up to 6GB LPDDR4X RAM / 256GB UFS 2.2
Cooling	4,300mm² vapor chamber	Standard
Rear Camera	50MP with Autofocus	13MP with Autofocus
Front Camera	8MP	5MP
Battery & Charging	8,000mAh, 45W SuperVOOC	6,500mAh, 45W SuperVOOC
Durability Ratings	IP69K, IP69, IP68, IP66, MIL-STD tested	IP64, Diamond anti-drop architecture
Biometrics	In-display optical fingerprint	Side-mounted fingerprint
Key Extras	NFC, IR remote	3.5mm audio jack, Expandable storage
Pricing	From 1,699 Yuan (~$250)	From 1,399 Yuan (~$206)