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Fingerprint scanner face-off: Samsung Galaxy S10+ vs OnePlus 6T vs Galaxy S9 vs Apple’s iPhone

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Facial scanners and time-of-flight cameras competence be a approach of a future, nonetheless until we get there, fingerprint scanners are still a many renouned approach to close down a personal data. And like fingerprints themselves, all scanners are not combined equal. So we put them to a exam in a accumulation of renouned phones!

The phones

Galaxy S10+

Samsung’s newest handset dispenses of a earthy scanner on a behind of a phone for a distant some-more cutting-edge one. Inside a Galaxy S10+’s arrangement you’ll find an ultrasonic fingerprint sensor that uses sound to review a ridges in your fingerprint.

OnePlus 6T

The OnePlus 6T also has an in-display fingerprint scanner, nonetheless it uses Qualcomm’s visual sensor. That means it uses a brief detonate of light to irradiate your fingerprint and concede a scanner to review it.

Galaxy S9

Up until a Galaxy S10+, Samsung used a earthy fingerprint scanner usually like any other Android phone. On a Galaxy S9 it’s positioned a tiny aloft than it is on other Android phones, nonetheless it’s approach improved than it was on a Galaxy S8, when it was to a right of a camera lens.

iPhone 6s

Apple was one of a initial phone makers to move a fingerprint scanner to a phone in Touch ID, and from a iPhone 5s to a iPhone 8 it remained inside a home symbol subsequent a screen. The iPhone 6s is a three-year aged phone, nonetheless it uses a same second-gen scanner as a final iPhone to underline a fingerprint scanner, a iPhone 8. The usually disproportion is that a symbol on a iPhone 6s is a comparison one that clicks, rather than a solid-state one on a iPhone 7 and 8.

phones fingerprint scanner test Christopher Hebert/IDG

I used a Galaxy S10+, OnePlus 6T, iPhone 6s, and Galaxy S9 for this test.

The tests


The initial exam we ran was a pristine speed test: To see how quick we could clear any phone 10 times. To keep it uniform, we used dual hands: One to clear and a other to spin a shade on and off. My widespread palm was positioned over a particular sensor to revoke fumbling, and we used 3 step for any phone:

  1. Press a energy symbol to spin a shade on.
  2. Unlock a phone with my fingerprint.
  3. Press a energy symbol to spin a shade off.

And we steady that 10 times for any phone. we ran a exam a integrate of times to get an normal and scored a best times. we restarted a exam when there was a missed scan, nonetheless we let a opening animation finish before we incited a shade off.

galaxy s8 fingerprint Christopher Hebert/IDG

The Galaxy S9 uses a customary sensor, nonetheless a chain isn’t a best.


The subsequent exam was a tiny reduction methodical. Basically, we wanted to see how a sensors would work in 3 comparatively common conditions: water, soap, and waste (in this case, powdered sugar). It didn’t time a tests, nonetheless we tracked how many times any phone was means to clear when my finger was wet, soapy, and powdery. To control a test, I filled 3 cups filled with water, fatty water, and powdered sugar, and we dipped my scanning finger in any of them, attempted to clear any phone a series of times, and afterwards repeated.


The smallest systematic nonetheless some-more critical exam we ran was accuracy. we wanted to see how fast we could take any phone out of my slot and clear it, holding all variables into account. Like a speed test, we achieved a exam several times and took an average. For any phone, we put it in a same slot (my right), with a tip of a down confronting down and a shade confronting divided from my leg. Then we reached inside, took it out, and unbarred it, interlude a timer as shortly as a home shade appeared. we grabbed it a approach we routinely would and kept my eyes sealed to try to make it a loyal exam of how accurate we indispensable to be and how easy a sensor is to find nonetheless looking.

The results

Speed test

As we can see in a video, a iPhone was a easy leader when it came to speed. Apple was one of a pioneers of a fingerprint revolution, and a scanners have always been among a fastest around. The distance of a scanner also helps, as does a chain subsequent a screen.

op6t fingerprint Christopher Hebert/IDG

The OnePlus 6T uses light to indicate your fingerprint.

The OnePlus 6T achieved good too. we used it in a well-lit room, that helps a visual scanner do a thing, nonetheless we was still tender with how fast we was means to clear any time as if a sensor was physically underneath my thumb. The earthy sensor on a Galaxy S9 brought adult a rear, nonetheless that’s partially due to Samsung’s rather delayed animations. But even with my finger positioned directly above it, a scanner on a S9 is on a tiny distance and it’s flattering high on a behind of a phone, creation it a tiny trickier to hit.

The biggest warn was a Galaxy S10+. While it technically kick a S9 and we was generally means to clear it 10 times in reduction than 20 seconds, we severely had to combine to make certain my ride was strategically placed over a scanner. The smallest flaw caused a fake reading. If this is going to be Samsung’s process going forward, it’s going to need some refinements in a Galaxy Note 10 and S11.

Conditions test

All of a phones unbarred with my finger caked in powdered sugar. The earthy scanners struggled a little—and we had to purify a crevices of sugarine when we was done—but all in all, we shouldn’t worry if you’re eating a donut and need to clear your phone in a pinch.

Water and soap are another story. Neither a Galaxy S9 nor a iPhone 6s unbarred during all with soppy fingers, and a OnePlus 6T struggled too, unlocking usually after my finger was wiped down. But a Galaxy S10+, while not guaranteed to unlock, was a usually one that was means to review my non-dry fingerprint with any regularity. So that’s unequivocally a advantage of Samsung’s in-display sensor over a normal approach of doing things.

Accuracy test

In a all-important correctness test, a iPhone 6s was a usually phone we was means to clear in reduction than 2 seconds (1.5 to be exact), nonetheless a OnePlus 6T wasn’t distant behind during accurately 2 seconds. The Galaxy S9 took a tiny longer during 3 seconds—again due to a ungainly placement—but a S10+ was a large crook here, holding some-more than twice as prolonged to go from slot to use.

And that represents my best time. we fumbled some-more with a Galaxy S10+ than any other phone here, and not since of a size. Samsung’s whole in-display complement is temperamental, with unequivocally tiny room for error. OnePlus’s visual scanner is distant some-more forgiving, and I’m not unequivocally certain what Samsung gained by going this track other than a somewhat cleaner back. It competence feel like next-generation tech in theory, nonetheless it’s clearly a step retrograde in usability.

The winner

While a iPhone handily won overall, it’s got a oldest sensor here and a usually one that isn’t done anymore. That speaks volumes for Apple’s engineering: Apple has such faith in Face ID as a higher and some-more secure process of unlocking and authenticating, it deserted one of a best fingerprint sensors on a market.

iphone 6s fingerprint Christopher Hebert/IDG

The iPhone 6s looks outdated, nonetheless a fingerprint scanner is still top-notch.

We can also reap some information on in-display sensors. Out of a gate, a visual scanner on a OnePlus 6T is improved than a ultrasonic scanner on a Samsung Galaxy S10+, nonetheless it’s tough to contend either that’s due to a placement, distance of a scanner, or a altogether doing of a system. Also, Samsung’s animations were consistently slower than OnePlus’s and Apple’s, creation a whole complement feel even slower than it should, even when it unbarred on a initial try.

All in all, it unequivocally most feels like a first-gen sensor, that is in itself a step backward. The Galaxy S9 and S8 competence have suffered from uncanny chain of their sensors, nonetheless once flesh memory adjusted, a resource was solid. With a Galaxy S10+, it’s fundamentally a theory as to where to put your finger—and some-more mostly than not, we missed. And nonetheless any other secure option—including a iris scanner that debuted on a S7—the knowledge on a S10+ is reduction than great.

In short, we need a 3D facial-scanning resolution for Android phones. While Huawei has one on a Mate 20 Pro and LG introduced a time-of-flight sensor on a G8, Face ID has nonetheless to be mimicked in a mainstream way. And it needs to happen. Compared to a iPhone XS, all of a fingerprint scanners here feel like aged tech, nonetheless usually Apple has changed on to something better.