OnePlus 15 vs Samsung Galaxy S25 Ultra: As you know, OnePlus has recently launched its OnePlus 15 smartphone in India on November 13, 2025, while the Galaxy S25 Ultra was released in early 2025. Both phones are flagship smartphones, and many people are confused between these smartphones. So here I have mentioned 5 reasons why OnePlus 15 is better than Samsung Galaxy S25 Ultra, few things which people ignore and then purchase the wrong smartphone, and after that they regret. You should check these five things before purchasing OnePlus 15 or Samsung Galaxy S25 Ultra smartphone in 2025.
1. Superior Battery Capacity
The OnePlus 15 smartphone is equipped with a substantially larger 7300 mAh silicon-carbon battery pack, and it is a significant jump from the Samsung Galaxy S25 Ultra’s 5000 mAh lithium unit. So you get more than 3000 mAh extra battery, which allows you to use the phone for up to 2 days. On the other hand, Samsung Galaxy S25 Ultra smartphone gives you a battery backup of about half a day or a full day on normal usage.
2. Much Faster Charging
The OnePlus 15 smartphone features superior charging technology with 120W SuperVOOC charging support and 50W wireless charging. On the other hand, if you look at Samsung Galaxy S25 Ultra smartphone’s charging speed, then it only gets 45W fast charging and 15W wireless charging. So OnePlus 15 smartphone is capable of charging completely in 45 minutes, while the Galaxy S25 Ultra takes about 69 minutes to charge completely despite having a smaller battery.
3. Latest Processor
OnePlus 15 runs on the latest Qualcomm Snapdragon 8 Elite Gen 5 chipset, which is built on a new 3nm process and offers a generational leap in performance. While the Samsung Galaxy S25 Ultra smartphone uses a customised version of the previous year’s Snapdragon 8 Elite processor, benchmark tests show the newer chip in the OnePlus 15 has a clear advantage in both CPU and GPU performance for demanding tasks such as gaming, video editing, and multitasking. So if you want to go with the latest processor, then OnePlus 15 smartphone is perfect.
4. Enhanced Gaming Experience
OnePlus 15 smartphone display offers a smooth 165 Hz refresh rate and 3200 Hz touch sampling rate for incredibly responsive input, which helps in gaming, especially in high-graphics games. On the other hand, Samsung Galaxy S25 Ultra smartphone has only a 120 Hz refresh rate. So if you want a superior gaming experience, then you should go with OnePlus 15 smartphone.
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5. More Affordable Price
Lastly, if we compare the price, then OnePlus 15 smartphone has a starting price in India of approximately 72,999 rupees for the base 12GB RAM plus 256 GB storage model. While the Samsung Galaxy S25 Ultra smartphone targets the ultra-premium segment, and it starts around 1,29,999 for the same storage configuration. So if you want a performance, gaming, and charging beast on a budget, then you should choose OnePlus 15 smartphone in 2025.