Over the last couple of years, smartphones across the board have been quick to incorporate silicon carbide (Si/C) battery packs. These batteries are not only slimmer than their Li-ion counterparts, but also have a higher storage capacity. While some brands (like Samsung and Apple) are hesitant to make the switch, the likes of OnePlus, Xiaomi, Oppo, and more have already armed their flagship, midrange, and even midrange offerings with Si/C batteries. If you want to enjoy an almost 2-day battery life on a single charge, check out these top 10 smartphones with the biggest batteries.
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In This Article
Poco F7 (7,550mAh)
The India-spec model of the Poco F7 has a staggering 7,550mAh Si/C battery pack. It supports 90W wired charging, reaching an 80% charge in just 30 minutes. However, there’s no wireless charging support. The smartphone is powered by the Snapdragon 8s Gen 4 processor. Software duties are handled by the Android 15-based HyperOS 2 out of the box. The 6.83-inch AMOLED display has a 120Hz refresh rate and can reach 3,200 nits of peak brightness. The rear camera panel houses a 50MP primary shooter and an 8MP ultrawide lens. Read our Poco F7 review for more details.
Pros
- Bright display
- Cool design
- Powerful processor
Cons
- Mediocre ultrawide camera
Oppo Find X9 Pro (7,500mAh)
The Oppo Find X9 Pro offers the biggest battery pack among all the flagships. It packs a massive 7,500mAh Si/C battery under its hood. This battery pack supports 80W wired charging, 50W wireless charging, and 10W reverse wireless charging. At the heart of the smartphone lies the MediaTek Dimensity 9500 SoC. It runs the Android 16-based ColorOS 16 out of the box. The rear camera array comprises a 50MP primary shooter, a 200MP telephoto lens with 3x optical zoom, and a 50MP ultrawide lens. Dive into our review of the Oppo Find X9 Pro to learn more about the smartphone.
Pros
- Nice design
- Great cameras
- Bright display
Cons
- Gets warm after 30 minutes of gaming
OnePlus 15R (7,400mAh)
The R variant in the OnePlus 15 series has a slightly larger battery than the flagship model. This 7,400mAh Si/C battery pack supports 80W wired charging. The smartphone is powered by the Snapdragon 8 Gen 5 SoC. Its 6.83-inch AMOLED display has a 165Hz refresh rate and can reach a peak brightness of 3,600 nits. The rear camera panel houses a 50MP primary shooter and an 8MP ultrawide lens. The smartphone is rated IP68/IP69K for dust and water resistance. It can survive high-pressure water jets and is immerisble up to 1.5m for 30 minutes.
Pros
- Bright display
- Powerful processor
- IP69/IP69K rating
Cons
- Lacks a telephoto lens
OnePlus 15 (7,300mAh)
The OnePlus 15 offers the best overall battery experience. While its 7,300mAh Si/C battery pack has a slightly lower capacity than the 15R, it supports 120W wired charging, 50W wireless charging, 10W reverse wireless charging, and 5W reverse wired charging. It is one of the fastest charging smartphones around, taking just 15 minutes to reach a 50% charge. Powering this device is the Snapdragon 8 Elite Gen 5 processor. Its rear camera array comprises three 50MP sensors, one each for the primary shooter, ultrawide lens, and 3.5x periscope telephoto lens. Check out our OnePlus 15 review for more details.
Pros
- Fast charging
- Powerful processor
- Smooth display
Cons
- Not the best cameras in the segment
iQOO Z10/Vivo T4 (7,300mAh)
The iQOO Z10 and Vivo T4 share the same design, hardware, and specs. The two midrange smartphones are equipped with a massive 7,300mAh Si/C battery pack and come with a 90W power adapter inside the box. This adapter can fully charge the battery in just over an hour, with a 50% charge taking almost 33 minutes. The 6.77-inch AMOLED display has a 120Hz refresh rate and can reach a peak brightness of 5,000 nits. The rear camera panel houses a 50MP primary shooter and an ultrawide lens. Check out our iQOO Z10 and Vivo T4 reviews before making the purchase.
Pros
- Fast charging
- Bright display
- Durable
Cons
- No ultrawide lens
Buy iQOO Z10 on Amazon for Rs 24,998
Buy Vivo T4 on Amazon for Rs 22,590
OnePlus Nord CE5 (7,100mAh)
The entry-level model in the OnePlus Nord 5 series has a bigger battery pack than the standard variant. This 7,100mAh unit supports 80W fast wired charging. The global model comes with a 5,200mAh battery pack. The smartphone is powered by the MediaTek Dimensity 8350 Apex chipset. It runs the Android 15-based ColorOS 15 out of the box. The 6.77-inch Fluid AMOLED display has a 120Hz refresh rate and can reach a peak brightness of 1,430 nits. The rear camera panel houses a 50MP primary shooter and an 8MP ultrawide lens. There’s support for expandable storage on board. The device is rated IP65 for protection against dust and water. Check out our OnePlus Nord CE5 review for more details about the phone.
Pros
- Big display
- Good main camera
- Expandable storage
Cons
- Lacks a secondary speaker
iQOO 15 (7,000mAh)
The gaming-specialist iQOO 15 has a 7,000mAh Si/C battery under its hood. It supports 100W wired and 40W wireless charging. Being a gaming smartphone, it has a nifty Bypass Charging feature, which diverts the incoming current from the charger directly to the motherboard, thereby reducing charge cycles. Its 6.85-inch LTPO AMOLED display has a 144Hz refresh rate and can reach a peak brightness of 6,000 nits. The rear camera panel houses three 50MP sensors, one each for the primary shooter, ultrawide lens, and 3x telephoto lens. Dive into our iQOO 15 review to learn more about its gaming performance.
Pros
- Bright display
- Powerful processor
- Upgraded telephoto lens
Cons
- Native refresh rate for games is capped at 60fps
Realme GT 8 Pro (7,000mAh)
Realme’s latest flagship smartphone flaunts a 7,000mAh battery pack. It supports 120W wired charging, reaching a full charge in just 43 minutes. With a 50W wireless charging, it takes 79 minutes to accomplish the same feat. There’s support for 5W reverse wired and 10W reverse wireless charging as well. Powering the device is the Snapdragon 8 Elite chipset. Its 6.79-inch AMOLED display has a 144Hz refresh rate and can reach a peak brightness of 7,000 nits. The modular rear camera island houses a 50MP primary shooter, a 200MP telephoto lens with 3x optical zoom, and a 50MP ultrawide lens.
Pros
- Amazing processor
- Great telephoto lens
- Bright display
Cons
- Mediocre main camera
Realme 16 Pro+ (7,000mAh)
Realme’s midrange offerings also pack big batteries. The Realme 16 Pro+ comes with a 7,000mAh Si/C battery pack. It supports 80W wired charging, taking up to an hour to reach a full charge. The smartphone is powered by the Snapdragon 7 Gen 4 chipset and runs the Android 16-based Realme UI 7 out of the box. Its 6.8-inch AMOLED display has a 144Hz refresh rate and hits 6,500 nits of peak brightness. The rear camera array comprises a 200MP primary shooter, a 50MP telephoto lens with 3.5x optical zoom, and an 8MP ultrawide lens. Read our Realme 16 Pro+ review to learn more about the smartphone.
Pros
- Nice design
- Bright display
- Good performance
Cons
- Mediocre ultrawide lens
Moto G57 Power (7,000mAh)
If you’re shopping in the budget segment, check out the Moto G57 Power. Its 7,000mAh Si/C battery pack can last up to 2 days on normal usage. The smartphone comes with a 33W power adapter inside the box, which takes up to 2 hours to fully charge the battery pack. Powering this device is the Snapdragon 6s Gen 4 SoC. The 6.72-inch IPS LCD panel has a 120Hz refresh rate and can reach a peak brightness of 1,050 nits. The rear camera panel houses a 50MP primary shooter and an 8MP ultrawide lens. Read our Moto G57 Power review to learn more about its everyday performance.
Pros
- Nice design
- Durable
- Good main camera
Cons
- No expandable storage
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Final Thoughts
These are the top 10 smartphones with the biggest batteries. While buying a smartphone, make sure you check out the brand’s internal battery life cycle tests to give you a better idea of its longevity. If you have any questions, let us know in the comments!
