OnePlus 15 vs Samsung Galaxy S23 Ultra
Verdict
Our overall take, at a glance
Key takeaways
- OnePlus 15 leads Samsung Galaxy S23 Ultra overall by 6 points (83 vs 77 out of 100).
- OnePlus 15 stands out on Memory RAM capacity: 16 GB, Storage capacity: 1,024 GB, Display Refresh rate: 165 Hz.
OnePlus 15 leads overall
OnePlus 15
83
Samsung Galaxy S23 Ultra
77
Why it stands out
- Memory RAM capacity: 16 GB
- Storage capacity: 1,024 GB
- Display Refresh rate: 165 Hz
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jul 2026.
OnePlus 15
The OnePlus 15 is a flagship smartphone that represents a highly unconventional generational update, described by reviewers as a significant departure from standard annual refreshes. Produced by Oppo-backed OnePlus, the device leverages the brand's legacy of focusing on a high price-to-performance ratio and custom software integration. Specific hardware specifications and processor details are not documented in the provided source materials.
Best for Buyers looking for a smartphone that delivers a major departure from standard, pBest for Users interested in a device from a brand historically committed to strong price
Pros
- Characterized by reviewers as a highly unique and non-traditional product update rather than an incremental change
- Benefits from the manufacturer's established history of balancing high-end quality with competitive pricing
- Backed by shared supply chain and manufacturing resources with Oppo
Cons
- The brand has historically faced criticism regarding customer support and past issues with app performance throttling
Samsung Galaxy S23 Ultra
The Samsung Galaxy S23 Ultra is an S-Series flagship smartphone from Samsung Electronics, released in February 2023. It features improvements over previous models and includes support for a bundled stylus (1).
Best for photographyBest for productivityBest for flagship users
Pros
- Features a high-resolution main camera of 200 megapixels, which allows for better low-light photos and cropping without loss of resolution (4).
- Supports pressure sensitive stylus use, and the stylus tucks into the phone (2).
- Has an IP68 rating for water and dust protection (2).
- Includes multiple telephoto lenses: 3x, ultra-wide, and a 10x optical telephoto lens (4).
Cons
- The camera array design has visible rings that may collect dust (3).
- The performance of the 10x zoom varies, and close-up images or videos might not be as sharp as anticipated (4).
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
OnePlus 15
Samsung Galaxy S23 Ultra
Performance
Higher benchmark score = faster
OnePlus 153,900,000
Samsung Galaxy S23 Ultra1,287,951
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Battery capacity
Larger cell — a hardware spec, not battery life
OnePlus 157,300 mAh
Samsung Galaxy S23 Ultra5,000 mAh
Capacity is the raw battery size. Real-world battery life depends just as much on the processor, software and display.
Physical Comparison
Weigh them up, then compare real dimensions in 3D
OnePlus 15Samsung Galaxy S23 Ultra
Samsung Galaxy S23 Ultra is 22 g (10%) heavier than OnePlus 15.
Review Videos
Hand-picked expert reviews for each product
Detailed Specifications
The full spec sheet, side by side