All three phones got tested. All those tests are shown in a YouTube video which the company published, and it is embedded below this article.
The Galaxy S20 Ultra proved to be tougher than its siblings, more difficult to break
The largest Galaxy S20 handset did the best in a series of tests SquareTrade performed. The Galaxy S20 Ultra got a breakability score of 70, which is the lowest (and best) score, proving the device is more difficult to break than the Galaxy S20 and S20+.
The S20+ got a score of 71, which is fairly close to the 'Ultra'. The Galaxy S20, on the other hand, fared the worst, as its score was 81. The higher the score, the more prone a device is to breaking.
Now, SquareTrade performed seven tests on all three devices, to determine the breakability score. The first test was a face down drop test. The Galaxy S20, S20+, and S20 Ultra score 90, 80, and 75 points in that test. Once again, the lower the score, the better.
The Galaxy S20's display was not usable after this drop. The Galaxy S20+'s was barely usable, while the Galaxy S20 Ultra's display continued functioning, despite some hairline fractures and loose glass.
The back down drop was handled best by the 'Plus' model
The back down drop test was handled best by the Galaxy S20+, while all three phones scored the same in the water test (which lasted for 30 minutes). The Galaxy S20 Ultra reigned supreme in the bendability test, which is not surprising.
The phone managed to get a 30 points score here, while the Galaxy S20+ and S20 scored 55 and 100, respectively. The Galaxy S20 Ultra is made out of stainless steel and glass, while the other two phones are made out of aluminum and glass.
Stainless steel is tougher than aluminum, so the 'Ultra' was expected to do better in the bendability test.
Do note that the Galaxy S20 and S20+ will not bend in normal use, no way. Aluminum is plenty tough, and these two phones are really well-built. SquareTrade used a machine to bend the devices.
The Galaxy S20 Ultra also fared best in the tumble test (which lasted 60 seconds), beating its siblings In the 'Materials' test, the Galaxy S20 did the best, while the repairability test was the same for all three phones.
Once again, you can check out all of these tests in a YouTube video which is embedded down below. SquareTrade performed rather detailed tests on all three devices.