Oppo A91 tested: ascent and descent

Oppo brings with the A91 an Android smartphone for the golden mean. It serves the middle class and the entry-level class alike, the test report reveals.

A91 is the latest mid-range smartphone from Oppo, which should also win many new customers for the smartphone manufacturer here in Germany. It is the beginning of Oppo in Europe, at least in terms of the lower price ranges. Oppo wants only 300 euros for this Android phone, the price could drop quickly over the summer and even get closer to the limit of only 200 euros. We asked ourselves whether the 300 euros are okay or should we really wait for the price drop?

I had the A91 with me for a few days now and come to a mixed conclusion. If you want to spot a weak point, maybe the built-in Mediatek chip. At least that’s what I thought in advance. Not only is this processor not the latest generation, it also seems to be a hurdle for the developers. The A91 will still be delivered with Android 9 and Android 10 should only appear late in the new year. Probably not until a year after Android 10 was launched.

  • 6.4 inch AMOLED display, 408 PPI, fingerprint sensor
  • MTK MT6771V, 8 GB RAM, 128 GB storage
  • 48 MP main camera + ultra wide angle, portrait, mon
    16 MP front camera
  • Bluetooth 4.2, WiFi 5, LTE, dual SIM
  • 4025 mAh battery, Vooc Flash Charge 3, USB-C
  • Android operating system with Google apps

If you want to evaluate the everyday performance of the integrated chip, the result is actually only slightly less good in comparison. I have a Redmi Note 9S that uses the Snapdragon 720G and simply cuts a much better figure in complex games. Smoother presentation in general, plus significantly fewer frame drops. Same thing in everyday life, the Qualcomm CPU is always slightly ahead of the Mediatek competition. If you look at the device prices, the Oppo smartphone lags behind in this point.

The optional high-performance mode brings some improvement.

AMOLED display as trump card, camera only sufficient for snapshots

In everyday life it is similar in other apps, overloaded websites like or can be scrolled a little better with Qualcomm-CPU because they flow more smoothly. It is the compromise at 300 euros if it is supposed to be a better display. Either display or CPU. I would always prefer the AMOLED display built into the A91. A richer display, better viewing angles, fewer reflections, the generally more plastic effect and the deep black, for me the display is one of the highlights of the Oppo A91.

The integrated fingerprint sensor is surprisingly accurate and fast.

Oppo A91 display

Another important point is the quad camera, whose main sensor has a resolution of 48 MP. Don’t expect miracles. This is a pure snapshot camera that has its usual weaknesses and some of them. Lowlight is just one of them, and portrait mode is not one of my favorite functions. The manufacturers would like to tell us something else, but the price range reveals more in advance. Snapshots a day, sometimes ultra wide angle or macro. You shouldn’t expect more, otherwise there will be disappointments.










In normal use, I would rate the integrated battery as positive; in half an hour of Asphalt 9, no 10 percent battery is gone. 120 minutes of active display (YouTube, games, browser) still meant 79 percent remaining battery. And after several hours of sporadic but usual use, it was clear that you should get through the day very well with the over 4000 mAh battery, regardless of whether you like to play or maybe don’t do it as often.

Conclusion: lightweight for a low price

299 euros are an announcement for the hardware on offer, but the details do not always turn out to be a plus. The bottom line I’m disappointed with the camera, the more convincing is the display. Oppo didn’t make the A91 too big or too heavy, I personally like that. In the jungle of many Android smartphones in this price range, what ultimately bothers me most is the outdated Android software that was launched at the market. If you do not place so much emphasis on this and also consider the performance of the camera to be less important, you will be offered a good device.


  • Good AMOLED display with integrated fingerprint sensor.
  • Housing looks light and slim, is well made.
  • Lots of RAM, lots of data storage.
  • Battery life can do something, faster charging.
  • Jack connection provides freedom.
  • Solid additional functions of the manufacturer software.


  • System performance sometimes lagging behind.
  • Camera weakens too often.
  • Speaker is weak on the chest.
  • Old Android ex works.

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