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Oppo wastes huge potential with its mini‑flagship smartphone due to a lack of efficiency

Oppo Find X9s Pro in review
ⓘ Notebookcheck (Marcus Herbrich)
Oppo Find X9s Pro in review
In our review, the Oppo Find X9s Pro masked an efficiency weakness with its huge battery, which is somewhat surprising given the Find X9 Pro’s test results. For an easy‑to‑handle and compact smartphone, the battery performance is in a completely different league compared to the Samsung Galaxy S26.

Oppo is squandering great potential with its Find X9s Pro in terms of endurance due to a lack of efficiency at low system load. Although the 7,025 mAh battery looks like a real highlight on paper, the Find X9s Pro cannot match the fantastic runtimes of the Find X9 Pro in our review. The mini flagship powered by the Dimensity 9500, is simply too wasteful in idle mode with the the energy available.

Power consumption measurement in the Oppo Find X9s Pro test compared to the Galaxy S26 and Find X9 Pro
Power consumption measurement in the Oppo Find X9s Pro test compared to the Galaxy S26 and Find X9 Pro

The power‑consumption figures in our idle measurements clearly expose the efficiency problem. While other top smartphones from Oppo, such as the Find X9 or even the significantly larger Find X9 Pro, remain below 2 watts in idle mode, the Find X9s Pro consumes noticeably more energy. Our Geekbench and GFXBench measurements, taken with the display brightness adjusted to 150 cd/m², clearly indicate the lack of optimization.

In idle mode, the Find X9s Pro consumes around 3 watts, more than three times as much power as the large flagship model, the Find X9 Pro, which is also powered on MediaTek's Dimensity 9500.

A large battery in the handy top smartphone partially conceals the Dimensity 9500's inefficiency

However, the Find X9s Pro's extra-large battery only partially conceals its inefficiency. In our web surfing battery test, the Oppo phone delivers a really good stamina for the compact smartphone class. Compared to the Samsung Galaxy S26, the Find X9s Pro lasts almost 10 hours longer.

However, due to the high power consumption at low system load, Oppo is giving away valuable screen‑on time that could have made the mini‑flagship a true endurance champion. Even the larger flagship model, the Find X9, with an identical battery capacity but larger OLED screen, lasted longer in our battery test.

All information and measurement data on the Find X9s Pro can be found in our review of the Oppo phone. Prices for the compact flagship start at around $940 from our loan partner Trading Shenzhen.

Oppo Find X9s Pro in the test
Oppo Find X9s Pro in the test

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review of the Oppo Find X9s Pro

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 06 > Oppo wastes huge potential with its mini‑flagship smartphone due to a lack of efficiency
Marcus Herbrich, 2026-06-10 (Update: 2026-06- 7)