OnePlus 15 vs Samsung Galaxy S25 Ultra: Full Comparison
OnePlus has surprised tech enthusiasts by launching the OnePlus 15 ahead of schedule, putting it directly against Samsung’s Galaxy S25 Ultra. With a powerful processor, massive battery, and a more budget-friendly price, the competition is fierce. Here’s how the two flagship smartphones compare.
Design & Durability
The OnePlus 15 stands out with IP68 and IP69 ratings, making it resistant not only to dust and submersion but also to high-temperature water jets. Its AquaTouch display ensures smooth touch response even with water on the screen—perfect for poolside or shower use. The Sand Storm edition’s MAO-treated frame adds extra durability against daily wear.
water resistanceThe Galaxy S25 Ultra offers a classic premium build with IP68 protection but lacks the extra water-resistance and touch features of the OnePlus 15.
Battery & Charging
OnePlus pushes boundaries with a 7,300mAh battery, outperforming Samsung’s 5,000mAh battery by a wide margin. In real-world testing, the OnePlus 15 still had 40% charge left after heavy use, while the S25 Ultra struggled to last a full day.
Charging speeds also favor OnePlus: 80W wired versus Samsung’s 45W. Wireless charging is faster on the OnePlus 15 as well, at 50W compared to Samsung’s 15W.
Performance & Display
165 HzPowered by Snapdragon 8 Elite Gen 5, the OnePlus 15 delivers top-tier performance, combined with a 6.78″ AMOLED 165Hz display. Samsung’s 6.9″ QHD AMOLED screen, however, boasts superior brightness (2600 nits peak) and color accuracy, making it the winner for video, gaming, and content consumption.
Cameras
- OnePlus 15: Triple 50MP cameras (wide, ultrawide, 3.5x telephoto) + 32MP front
- S25 Ultra: 200MP main, multiple tele lenses (5x, 3x), 50MP ultrawide + 12MP front
Samsung clearly leads in camera versatility and resolution, perfect for photography enthusiasts.
Software & Longevity
OnePlus promises 4 years of OS updates and 5 years of security patches, while Samsung guarantees 7 years of software updates, making it the better long-term investment.
Price & Value
- OnePlus 15: $899
- Samsung S25 Ultra: $1,299
OnePlus 15 is the better value, with longer battery life, superior water usability, durability, and a much lower price. Samsung excels in display quality, stylus functionality, and software longevity.
Bottom Line:
Choose the OnePlus 15 if you want dependability, battery, and savings. Opt for the Samsung S25 Ultra if display excellence, S Pen support, and long-term updates are your top priorities.
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