OnePlus 15
Tom's Guide battery king at 25 hours 13 minutes, the longest ever tested in the US. First phone with genuine 2-day battery life using 7,300mAh silicon-carbon technology. 100W charging fills in 25 minutes.
Exceptional battery life.
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Tom's Guide battery king at 25 hours 13 minutes, the longest ever tested in the US. First phone with genuine 2-day battery life using 7,300mAh silicon-carbon technology. 100W charging fills in 25 minutes.
7,500mAh silicon-carbon battery delivers comfortable 2-day usage. 100W SuperVOOC fast charging plus 50W wireless. Bonus: exceptional 200MP telephoto camera.
Mid-range battery beast with 5,500mAh and efficient Dimensity 9400e. 90W fast charging fills in under 45 minutes. Excellent battery at accessible $599 pricing.
Among the longest-lasting iPhones in independent testing (the newer iPhone 17 Pro Max now edges it out, but at hundreds of dollars more). 4,700mAh (largest non-Max) with the efficient A18 Bionic delivers 18-20 hours of mixed use. Best iOS battery value.
Tom's Guide measured 16 hours 10 minutes, over two hours longer than the Galaxy S25 Ultra from the same 5,000mAh cell thanks to Snapdragon 8 Elite Gen 5 efficiency, and wired charging jumps from 45W to 60W. It trails the silicon-carbon phones above because Samsung hasn't adopted the higher-density battery tech yet.
| Product | Battery Life · 40% | Battery Capacity · 20% | Charging Speed · 20% | Efficiency · 10% | Value · 10% | Score | Price |
|---|---|---|---|---|---|---|---|
1OnePlus 15 | 10 | 10 | 10 | 9 | 10 | 9.9 | Check price → |
2OPPO Find X9 Pro | 10 | 10 | 10 | 9 | 8 | 9.7 | Check price → |
3Motorola Edge 60 Pro | 9 | 9 | 9 | 8 | 10 | 9.0 | Check price → |
4Apple iPhone 16 Plus | 9 | 8 | 6 | 10 | 9 | 8.3 | Check price → |
5Samsung Galaxy S26 Ultra | 8 | 8 | 8 | 9 | 7 | 8.0 | Check price → |
| #1 | #2 | #3 | #4 | #5 | |
|---|---|---|---|---|---|
| Product | ![]() | ![]() | ![]() | ![]() | ![]() |
| Brand | OnePlus | OPPO | Motorola | Apple | Samsung |
| Display | 6.78" LTPO AMOLED, 2780x1264, 120Hz | 6.78" LTPO AMOLED, 2780x1264, 120Hz, 3500 nits | 6.7" OLED, 2712x1220, 144Hz | 6.7" Super Retina XDR, 2796x1290, 60Hz | 6.9" Dynamic AMOLED 2X, 3120x1440, 120Hz |
| Processor | Snapdragon 8 Elite | MediaTek Dimensity 9500 | MediaTek Dimensity 9400e | A18 Bionic | Snapdragon 8 Elite Gen 5 for Galaxy |
| RAM | 12GB/16GB | 16GB | 12GB | 8GB | 12GB/16GB |
| Storage | 256GB/512GB | 256GB/512GB | 256GB | 128GB-512GB | 256GB-1TB |
| Battery | 7,300mAh Si-C, 100W wired, 50W wireless | 7,500mAh, 100W wired, 50W wireless | 5,500mAh, 90W charging | 4,700mAh | 5,000mAh, 60W wired, 25W wireless |
| Camera | 50MP triple system | 50MP main + 50MP ultrawide + 200MP 6x telephoto | 50MP triple system | 48MP dual system | 200MP f/1.4 main + 50MP ultrawide + 50MP 5x + 10MP 3x telephoto |
| Price | Check price → | Check price → | Check price → | Check price → | Check price → |
Battery capacity (mAh) is only half the story: real-world endurance depends just as much on chemistry and how efficiently the chip and display use every milliamp-hour. Newer silicon-carbon batteries pack more capacity into the same physical cell than older graphite designs, which is why some recent phones post longer runtimes without a larger, heavier battery. But a big cell paired with an inefficient chip or a power-hungry always-on display can still underperform a smaller battery in a well-optimized phone, so compare independently reported screen-on-time or mixed-usage hours rather than shopping by mAh alone. Display technology matters more than most buyers expect: variable refresh-rate OLED panels that drop to 1Hz when static sip power at idle, while some LCD and lower-end OLED panels draw more continuously, a real factor if you keep the screen on for reading, navigation, or video. Charging speed is a genuine cost-of-ownership consideration, not just convenience: fast wired charging (65W+) gets you back to a full day in minutes, but repeated fast charging generates more heat and accelerates capacity loss over 2-3 years of daily cycles, so a phone you fast-charge nightly may need a battery-health checkup or replacement sooner than one charged more gently overnight. Wireless charging is typically slower and less efficient than wired, useful for convenience but not for a quick top-up before heading out. The most common mistake buyers make in this category is fixating on the single mAh number printed on a spec sheet while ignoring 5G/network efficiency, background app behavior, and the manufacturer's software update commitment: a phone with excellent battery life today but a short security-update window will need replacing sooner, which is the real long-term cost. If all-day battery life is the top priority, also check whether the manufacturer publishes an official battery-health warranty (some guarantee capacity retention after a set number of charge cycles), since that protects your investment as the cell inevitably degrades with use.
Battery rankings based on standardized testing from Tom's Guide and real-world mixed-usage reports. We evaluate total endurance, charging speed, battery capacity, and efficiency.
Hours
mAh
Wired and wireless
Processor
Battery per dollar