The battery life and charging speeds of the iQOO 15 and the iPhone 17 can be compared based on available data and tests from various reviews and official specifications.
Starting with the iPhone 17, Apple states that the standard iPhone 17 offers up to 30 hours of video playback and up to 27 hours of streaming video playback under controlled lab conditions. Real-world usage tests show that the iPhone 17's battery provides approximately 7 hours and 21 minutes of continuous mixed-use, including activities such as calls, messaging, gaming, video playback, and navigation. The iPhone 17 has a battery capacity of around 3692 mAh. Over time, Apple batteries are designed to retain about 80% of their original capacity after 500 full charge cycles, roughly translating to 1.5 to 2 years of heavy use, with many users experiencing between 70-80% capacity after 2 to 3 years. For charging, the iPhone 17 supports fast charging capability, able to reach 50% charge in about 30 minutes using compatible fast chargers. Wireless charging is not supported on the standard iPhone 17.
On the other hand, the iQOO 15 boasts a significantly larger battery capacity of 6700 mAh. This large battery is a key highlight, intended to provide longer usage time for heavy users. The device supports advanced charging technology with 100W wired charging as well as 100W wireless charging capabilities, allowing for very fast battery replenishment compared to typical smartphones. This means the iQOO 15 can be charged from 0 to full much quicker than the iPhone 17. The bigger battery coupled with high-speed charging support means users can expect a much longer endurance and quicker recharge cycles with the iQOO 15.
The iQOO 15 uses a Silicon/Carbon (Si/C) battery type, likely designed for improved energy density and enhanced charging performance. It is also worth noting that the iQOO 15 integrates hardware and software optimization features, such as a custom Q3 chip aimed at efficient power management and a sophisticated cooling system to maintain performance without excessive heat buildup during charging or heavy usage.
In terms of battery endurance, while the iPhone 17 can handle daily moderate usage reliably with around 7+ hours of mixed activity runtime, the iQOO 15's much larger battery and efficient charging imply that it will outperform the typical battery longevity of the iPhone 17 under similar usage patterns. The iQOO 15's advantage grows with intensive use, gaming, and longer screen-on times due to its 6700 mAh capacity, which nearly doubles the capacity of the iPhone 17.
To summarize, the iPhone 17 delivers solid battery performance with up to 30 hours of video playback and a fast charge to 50% in about 30 minutes but has a smaller 3692 mAh battery without wireless charging. The iQOO 15, meanwhile, offers a much larger 6700 mAh battery with 100W wired and wireless fast charging, ensuring significantly longer usage and much quicker recharge times.
This comparison highlights the iQOO 15 as having a clear advantage in raw battery capacity and charging speed, while the iPhone 17 emphasizes balanced performance and integration within the Apple ecosystem. Each device targets a somewhat different priority in battery performance and charging technology.