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The phone also has a rear-mounted fingerprint scanner. The phone also carries support for face unlock. The phone comes packed with a mAh non-removable battery with support for 18W dual-engine fast charging. The phone also supports reverse charging and runs on Android 9.

The phone measures The device will be available countrywide in two colours — Magnetic Black and Spring White. Sign in. Are you trying to jump-start a lapsed fitness routine? Fine-tune an exercise regimen? Train for a triathlon? The right fitness tracker can help you achieve your specific objectives. Fitness trackers range from simple to sophisticated, with prices to match. All trackers use sensors to monitor your movements, often connecting and syncing wirelessly with a computer or mobile device to store data about your day-to-day activities. The types of activities monitored vary by tracker but can include number of steps taken, hours of sleep, heart rate, skin temperature, and perspiration levels.

Most trackers use an accelerometer to help measure your steps and other up-down, side-to-side, and front-to-back movements. Some activity trackers let you sync with external heart monitors, smart bathroom scales, and other devices that offer more precise readings. When paired with the companion software or mobile app or even third-party apps, in some cases , trackers can give you insight into the habits that make up your lifestyle.

Other models offer smartwatch-like alerts for incoming calls, texts, instant messages, and e-mail. They can even share data remotely with your doctor.

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Fitness trackers are designed to accommodate a range of requirements. Some models can even provide data tailored specifically to the routines of avid swimmers, golfers, skiers, weight lifters, or marathon runners. Style Many trackers are designed to be worn on the wrist, but some can be worn as pendants or clipped to your clothing.

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In the past, devices tended to look purely functional, but manufacturers are now more conscious of style. Look for a greater variety of materials, shapes, and colors—and some models created in collaboration with bona fide fashion designers. Display The more advanced trackers reveal their data—using words, numbers, and symbols—on a watch-face-like display. Others share that info via a simple LED light display or only via an app.

Compatibility Before you pull out your wallet, make sure the device is simpatico with your cell phone or computer. An image stabiliser compensates well for minor camera shakes, while the main rear-facing sensor can record in up to 4K. Choose a scene and navigate within the first image. One click changes the position on touchscreens.

One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device. We also subjected our review unit to further camera tests under controlled lighting conditions. In short, the main sensor reproduces colours too brightly compared to the ColorChecker Passport reference colours, with only dark blue looking almost accurate. Colours look overly bright and a little washed-out in the photo of our test chart too.

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Fine lines and structures are reproduced throughout though, and contrast levels are good at the edges of the image. Surprisingly, contrast levels are at their lowest at the centre of the image, which is not often the case with smartphone cameras. Vivo does not currently sell any IQOO specific accessories on its website or through third-party retailers. However, we would recommend researching the risks and pitfalls of importing a smartphone from China, as you may find yourself with a costly warranty repair if you must return the device to China.

The app works just as well as it does on other devices that we have tested. You can download other keyboard apps from places like the Google Play Store too. The touchscreen in our review unit precisely and reliably reproduces inputs onscreen. The glass protecting the touchscreen has a pleasantly smooth finish, on which it is easy to perform multi-finger gestures like drag-and-drop movements. The accelerometer also responds quickly when we rotate the display.

Unfortunately, we found ourselves having to press the screen unnaturally hard before the sensor would recognise our registered fingers. Hence, the inclusion of an in-screen sensor may be the fashionable choice, but the one in the IQOO is not as practical as a conventional capacitive sensor would have been.

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The IQOO also has touch-sensitive shoulder buttons, which are adjacent to the power and volume buttons. You can customise which actions they trigger while gaming with FunTouch OS settings, although we found we had to rather deliberately press them before they would activate. This means that you should not find yourself accidentally triggering them, but you may also occasionally find that you have not quite pressed them correctly while gaming, which could become annoying.

Vivo has equipped the IQOO with a 6.

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Our review unit flickers at Hz across the whole brightness range, which is low enough to cause PWM-sensitive people health issues like eye strain and headaches. If PWM was detected, an average of minimum: 5 - maximum: Hz was measured. Correspondingly, colours are well separated, while black tones look rich. We also did not notice a grey haze, which is typical of cheaper displays. CalMAN analysis demonstrates that the display in our review unit has a blue tint to it. You can mitigate against this by using the eye-protection mode to make the display look warmer, but the tint should not be a big deal in daily use.

You may still have to strain your eyes to see the screen in bright sunlight from oblique angles, but generally we had no issues with seeing what was being displayed onscreen even in the summer sun. We can read the display from practically any viewing angle undisturbed.

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There is no loss of brightness, contrast or a greenish tint that is common for OLED panels even at acute viewing angles. In short, the IQOO should handle any app or task with ease regardless of its complexity. We also experienced no lags or stuttering even during heavy multitasking in daily use.

Our review unit performed well in synthetic benchmarks and generally tops our comparison tables or is a few percent behind the Mi 9. We expected as much though since most of our comparison devices are equipped with Snapdragon or series SoCs, which are weaker than the Snapdragon in the IQOO. The IQOO continued to perform well in browser benchmarks. Browsing the web on Chrome 74 always remained smooth, as did the scrolling animation.


Websites load quickly, as does media content. While the write speeds of the UFS storage are below average, its read rates are on par with our comparison devices that are also equipped with UFS storage. The IQOO lives up to its marketing as a gaming smartphone. Complex titles like Asphalt 9: Legends and PUBG Mobile always ran smoothly during our tests regardless of the graphics settings at which we played them.

The device remained comfortable and easy to use even during prolonged gaming sessions too. The touch-sensitive shoulder buttons must be pressed precisely to activate though, so you need to ensure that your press is a deliberate one. The accelerometer and associated sensors worked perfectly throughout our gaming sessions. The screen always rotated without delay, while the cars in Asphalt: 9 Legends moved accurately with gesture controls enabled. Our tests certify that surface temperatures on our review unit reach a peak of Parts of the screen reached Our review unit never felt dangerously or uncomfortably hot though.

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The IQOO has a mono speaker, which is both comparatively quiet and underwhelming. Mid-tones dominate its frequency spectrum, with there being a distinct drop in volume below mid and high-frequency peaks. Overall, the speaker sounds good enough for occasionally playing music or video content, but we would recommend using external speakers or headphones where possible. You can connect external audio equipment via the headphone jack or Bluetooth.