The Xiaomi Mi 11 is the first smartphone to launch with Qualcomm’s new Snapdragon 888 processor. On top of that, it also appears to be the first phone to feature an in-display fingerprint sensor that doubles as a heart rate sensor.
Chinese tech blogger and tear down specialists, IO technology (艾奥科技), have gotten their hands on a Mi 11 and they have shown the in-display heart rate sensor in action in their teardown video. As you would expect, the placement is the same as a typical in-display fingerprint sensor.
From the looks of it, you’ll need to hold your finger at the same spot for 15 seconds to get a measurement via a health app. This is quite long as most heart rate sensors including Samsung’s previous rear-mounted unit would take 10 seconds or less. You can watch how it’s done from their teardown video of the Mi 11 starting at the 8:41 mark.
After the launch of the Mi 11, it was revealed that Goodix is the supplier for the ultra-thin optical in-display fingerprint sensor with heart rate monitoring. The company claims that the in-display heart rate sensor is just as accurate as a smart band and watches. According to their website, Goodix also supplies in-display fingerprint sensors to various brands including OnePlus, Samsung, Vivo, Oppo, Huawei and Realme.
It is quite rare to see new smartphones with built-in heart rate sensors these days. Samsung used to offer it as standard since the Galaxy S5 back in 2014 but the Korean smartphone maker has removed the feature beginning with the Galaxy Note 10.
Getting a one-off reading from a smartphone might not provide a clear picture of your wellbeing and it is better to have continuous reading through a fitness tracker or a smartwatch. If you just need something to track your heart rate, there are plenty of affordable fitness trackers with built-in heart rate monitoring under RM200. This include the Xiaomi Mi Smart Band 5 and Samsung Galaxy Fit 2.
Going back to the Mi 11 teardown, the video provides a clear look of its internals as they disassemble the Vegan Leather Lilac purple version of the device. The back is clearly plastic which appears to be quite flexible. Removing the camera module, the video reveals the Samsung 108MP ISOCELL HMX sensor with OIS, a 13MP Omnivision CMOS OV13B10 for its ultra-wide-angle shooter and a 5MP Samsung S5K5E9 sensor for its macro camera.
The Mi 11 also features a vapour chamber to keep its Snapdragon 888 processor cool and it gets a respectable 4,600mAh Li-Ion battery from Sunwoda Electronic. You can watch the full teardown video below: