This smartphone lasts longer than any other
The Redmi Note 17 Pro Max 5G is the premium model in Xiaomi’s mid-range lineup and aims to stand out in particular with its massive 9,210 mAh battery, which even reaches 10,000 mAh in the versions for China and India. The battery life results in our battery test are correspondingly high. This test simulates web browsing in a browser. To ensure optimal comparability, the test is conducted with the display brightness set to 150 cd/m². For this comparison, we’re limiting ourselves to smartphones with a manufacturer’s suggested retail price (MSRP) below 700 euros.
The massive 9,210-mAh battery gives the Redmi Note 17 Pro Max 5G outstanding battery life. In our Wi-Fi test, it lasted 33 hours and 42 minutes. Only the OnePlus 15T achieved an even better result at 34.3 hours, even though its 7,500-mAh battery is significantly smaller. This shows that Xiaomi owes its impressive battery life primarily to the battery capacity.
To better assess efficiency, we compared the measured Wi-Fi battery life to the respective battery capacity. The result is less flattering for Xiaomi. At 3.66 hours per 1,000 mAh, the Redmi Note 17 Pro Max ranks only sixth out of 13 smartphones.
Efficiency
| Rank | Smartphone | Hours per 1,000 mAh |
|---|---|---|
| 1 | OnePlus 15T | 4,57 |
| 2 | Nothing Phone (4b) | 4,23 |
| 3 | Realme 16 Pro | 4,05 |
| 4 | Sony Xperia 10 VIII | 3,96 |
| 5 | Google Pixel 10a | 3,92 |
| 6 | Redmi Note 17 Pro Max 5G | 3,66 |
| 7 | Nothing Phone (4a) Pro | 3,54 |
| 8 | Poco X8 | 3,54 |
| 9 | Redmi Note 17 Pro 5G | 3,50 |
| 10 | Motorola Edge 70 Fusion | 3,50 |
| 11 | Poco X8 Pro | 2,98 |
| 12 | Samsung Galaxy A57 | 2,98 |
| 13 | Poco X8 Pro Max | 2,73 |
Things look better within the Xiaomi family. The Redmi Note 17 Pro, with its 8,340-mAh battery, lasts 29.2 hours and trails the Pro Max by a narrow margin in terms of battery life relative to capacity. The Poco X8 Pro Max performs significantly worse. Despite its 8,500-mAh battery, it runs out of power after just 23.2 hours. This illustrates just how differently hardware and software can affect power consumption.
The Redmi Note 17 Pro Max thus remains an outstanding smartphone in terms of battery life. However, it owes its impressive runtime primarily to its large battery rather than exceptionally efficient operation. This is also reflected in the surprisingly high power consumption we measured while the device was idle.
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