The OnePlus 15R flips the script on endurance and raw value with a huge 7,400 mAh battery, 165 Hz AMOLED, and Snapdragon flagship silicon tuned for gaming and long runtimes. The Galaxy S24 answers with a more compact, refined flagship package: a brighter Dynamic AMOLED display, a balanced triple-camera system, and the polished One UI software experience. Choose the OnePlus 15R if battery life and sustained gaming are top priorities; pick the Galaxy S24 if you want a smaller, more pocketable phone with a proven camera system and Samsung’s ecosystem polish.
Summary table — headline differences at a glance
| Area | OnePlus 15R | Samsung Galaxy S24 |
|---|---|---|
| Display | 6.83″ FHD+ AMOLED, 165 Hz, ~2800×1272 | 6.2″ FHD+ Dynamic AMOLED 2X, 120 Hz, Vision Booster, up to ~2600 nits peak. |
| Chipset | Snapdragon 8 Gen 5 (3nm flagship-class) | Snapdragon 8 Gen 3 for Galaxy / Exynos 2400 (region-dependent). |
| RAM / Storage | Up to 12GB / 512GB (LPDDR5x / UFS 4.1) | Typically 8GB / up to 256GB (model/region variants). |
| Rear cameras | 50 MP main + secondary (dual setup) | 50 MP main + 12 MP ultrawide + 10 MP telephoto (3x optical). |
| Battery | 7,400 mAh, 80W wired (OnePlus claims very long runtimes) | ~4,000 mAh (rated ~3,880 mAh typical), 25W wired (45W support on larger S24+/Ultra). |
| Weight & size | Bigger & heavier (phablet class) | Compact and lighter — pocket-friendly. |
| Software | OxygenOS (Android 16) with gaming optimizations | One UI (Android 14 → upgradable) with Galaxy AI features & 7 years updates. |
| Best for | Long battery life, gaming, endurance | Compact design, balanced cameras, ecosystem & software polish |
Design comparison
OnePlus 15R
- The 15R follows OnePlus’s “performance-first” design language: flat profile, large display footprint and a build geared toward thermal headroom (more internal space for cooling). Expect a phone that feels substantial in the hand — comfortable for long gaming or media sessions but less pocketable.
Samsung Galaxy S24
- Samsung’s design goal with the S24 is compact refinement. The S24’s smaller 6.2″ body, slimmer bezels and attention to in-hand comfort make it more usable single-handed and easier to carry all day. Materials and finish are premium, and Samsung keeps a conservative, elegant aesthetic.
Verdict: pick the 15R if you accept a larger, heavier phone for battery life; pick the S24 if pocketability and one-hand use matter.
Display comparison
OnePlus 15R
- Large 6.83″ FHD+ AMOLED with 165 Hz refresh rate (super-smooth scrolling and gaming). The panel is tuned for responsiveness (good touch sampling and low latency), which benefits competitive gaming and fast UI animations.
Samsung Galaxy S24
- 6.2″ Dynamic AMOLED 2X, 120 Hz adaptive refresh, and Samsung’s Vision Booster for excellent outdoor readability and very high peak brightness. Samsung’s color tuning, HDR handling and overall panel quality generally lead the class for natural colours and contrast.
Verdict: choose OnePlus 15R if you want the fastest refresh (165 Hz) and a bigger canvas. Choose the S24 if display fidelity, peak brightness in sunlight and compact size are more important.
Camera comparison
OnePlus 15R
- OnePlus positions the 15R as a performance device rather than a camera-first phone. It uses a 50-MP main sensor with computational processing for daytime shots. Secondary wide/ultrawide capabilities are serviceable but not class-leading; telephoto or advanced multi-lens arrays are not the selling point here. Expect very good daytime images, average low-light performance, and competent video for everyday needs.
Samsung Galaxy S24
- The S24 offers a more versatile and proven triple camera system: 50-MP main, 12-MP ultrawide and a 10-MP telephoto (3x optical). Samsung’s processing, dynamic range, HDR handling and Nightography modes produce consistently strong results across lighting conditions, and the telephoto gives real zoom flexibility compared with most dual-camera rivals.
Verdict: if photography versatility (ultrawide + optical zoom + consistent night shots) matters, the Galaxy S24 is the better all-round shooter. The 15R will satisfy most users but sits behind Samsung in lens count and zoom capability.
Performance comparison
OnePlus 15R
- Equipped with the Snapdragon 8 Gen 5 (OnePlus’s implementation), the 15R targets flagship-level performance with heavy emphasis on gaming: sustained clocks, advanced cooling and responsive touch. It also leverages LPDDR5x RAM and UFS 4.1 storage in higher trims for fast app load times and smooth multitasking.
Samsung Galaxy S24
- The S24 ships with region-dependent silicon (Snapdragon 8 Gen 3 for Galaxy in many markets; Exynos in some regions). Samsung focuses on balanced day-to-day performance with strong single-core speeds, excellent thermal tuning for a compact body, and tight hardware-software integration. For sustained gaming the S24 performs well, but the smaller body can limit peak sustained thermal headroom versus a larger phone like the 15R.
Verdict: raw benchmark numbers will be close; the 15R may sustain higher performance longer (thanks to its size and cooling), while the S24 wins for efficiency and thermal polish in a compact chassis.
Battery & charging
OnePlus 15R
- 7,400 mAh battery (OnePlus’s biggest ever), with 80W wired fast charging and OnePlus features like bypass charging — built to run multiple days under moderate use and excel for long gaming sessions and heavy media consumption. Expect market-leading endurance.
Samsung Galaxy S24
- ~4,000 mAh rated capacity (typical value ~3,880 mAh) with 25W wired charging support (45W on larger S24+/Ultra). The S24’s smaller battery is balanced by efficient hardware and software, but it won’t match the multi-day endurance of the OnePlus 15R. If top-up speed and powerbank compatibility matter, the OnePlus’s faster charging and larger battery are decisive.
Verdict: OnePlus 15R wins outright on battery life and charge speed; S24 wins on compactness and acceptable single-day endurance for most users.
Software & updates
OnePlus 15R
- Ships with OxygenOS (Android 16 at launch in many regions) with a gaming focus, high-refresh optimization, and OnePlus-specific features. OnePlus has been improving its update promise, but historically Samsung offers longer major-OS support.
Samsung Galaxy S24
- One UI with Galaxy AI features and one of the best update commitments in Android: up to 7 years of OS/security updates for supported models. Samsung’s software integrates tightly with its ecosystem (Galaxy Watch, Galaxy Buds, DeX, Samsung Notes, etc.). If long-term software support and ecosystem services matter, Samsung has the edge.
Verdict: OnePlus offers a snappy OS and gaming optimizations; Samsung offers longer support, deeper ecosystem hooks and more polished OS integrations.
Final verdict — which should you buy?
- Buy the OnePlus 15R if: battery life and sustained performance are your top priorities. The 7,400 mAh cell and 165 Hz display make it the standout choice for gamers, heavy media users, and anyone who wants multi-day use without charging. It’s a value-oriented flagship in that sense.
- Buy the Samsung Galaxy S24 if: you prefer a compact, premium phone with a more versatile camera system, higher display peak brightness in sunlight, and long-term software support. The S24 is the better daily driver for people who value pocketability, camera flexibility and Samsung’s ecosystem.
Both phones serve different priorities: OnePlus 15R = endurance + performance; Galaxy S24 = compact polish + camera & software longevity.
3 FAQs
1) Which phone lasts longer on a single charge?
The OnePlus 15R — its 7,400 mAh battery and OnePlus power optimizations give substantially longer runtimes than the Galaxy S24’s ~4,000 mAh battery. Expect multiple days of light use on the 15R versus a single day (with comfortable margin) on the S24.
2) Which is better for camera-heavy users?
The Galaxy S24 is the better camera phone overall thanks to its dedicated ultrawide and telephoto lenses and Samsung’s mature image processing. The OnePlus 15R takes solid photos with its 50 MP main sensor, but it’s not positioned as a camera flagship.
3) Will the OnePlus 15R feel too big compared to the S24?
Yes — the 15R is a larger, heavier device designed for battery and gaming. If pocketability and one-hand use are priorities, the compact S24 will feel far more comfortable day-to-day.