The ultra-slim Samsung Galaxy S25 Edge is official, but just how thin is it compared to the rest of the 2025 flagship competition?
Samsung’s slimline flagship smartphone is a marvel of engineering, measuring in at just 5.8mm thick and 163g despite packing a 6.7-inch screen and plenty of premium smarts. But that can be hard to visualise unless you’ve seen the phone in the flesh.
To better help you appreciate just how thin and light the Samsung Galaxy S25 Edge is, let’s compare it to flagships like the iPhone 16 Pro Max, OnePlus 13 and even Samsung’s Galaxy S25 Ultra – phones you’re most likely familiar with.
Spoiler: the differences are significant.
The Galaxy S25 Edge is the slimmest flagship in 2025
Here’s exactly how the Galaxy S25 Edge stacks up to some of the most popular flagship phones in 2025.
| Thickness | Weight | |
| Samsung Galaxy S25 Edge | 5.8mm | 163g |
| Samsung Galaxy S25 | 7.2mm | 162g |
| Samsung Galaxy S25 Plus | 7.3mm | 190g |
| iPhone 16 Plus | 7.8mm | 199g |
| iPhone 16 | 7.8mm | 170g |
| Xiaomi 15 | 8.1mm | 189g |
| Samsung Galaxy S25 Ultra | 8.2mm | 218g |
| Oppo Find X8 Pro | 8.2mm | 215g |
| Sony Xperia 1 VII | 8.2mm | 197g |
| iPhone 16 Pro Max | 8.3mm | 227g |
| iPhone 16 Pro | 8.3mm | 199g |
| OnePlus 13 | 8.5mm | 210g |
| Honor Magic 7 Pro | 8.8mm | 223g |
| Xiaomi 15 Ultra | 9.4mm | 226g |
As you can see, the Galaxy S25 Edge is the thinnest smartphone on the market by quite a sizeable gap, with the second-thinnest phone being Samsung’s compact flagship, the regular Galaxy S25.
Beyond competition from Samsung’s own flagships, the gap is even more noticeable, with the likes of the iPhone 16 Pro Max measuring in at 8.3mm, a whole 2.5mm thicker, and an additional 64g too.
That’s especially true when compared to the 9.4mm-thick Xiaomi 15 Ultra. Though that’s an outlier in the flagship market, with most measuring somewhere between 7.8mm and 8.3mm, it does make for a rather dramatic difference when compared to the S25 Edge.
Interestingly, it’s not actually the lightest flagship on the market; that’d go to the Galaxy S25, which at 162g, pips the Edge to the win by just 1g. However, the Galaxy S25 is a much more compact phone than the S25 Edge, with a 6.2-inch screen compared to the S25 Edge’s 6.7-inch panel.
When it comes to phones with similar-sized screens – the Galaxy S25 Plus, iPhone 16 Plus, Sony Xperia 1 VII and Oppo Find X8 Pro – the difference is way more stark. That, in essence, is what makes the Galaxy S25 Edge such a marvel in the 2025 flagship market.
10-year rewind: Are we going back to where we were?
Handling the Galaxy S25 Edge felt oddly nostalgic, which was weird considering it was the first time I’d ever seen the phone. At the time, I couldn’t figure out why.
It was only when I got back to the Trusted Reviews office and, for something completely unrelated, picked up an early model of Google Pixel that I realised why; phones used to be so much thinner and lighter.
If we go back even further, before the inception of the Google Pixel line, it becomes clearer to see. 2015 phones like the Samsung Galaxy S6 were much thinner and lighter to hold than their 2025 counterparts.
| Thickness | Weight | |
| Samsung Galaxy S25 Edge | 5.8mm | 163g |
| Samsung Galaxy S6 | 6.8mm | 138g |
| Xiaomi Mi Note | 7mm | 161g |
| iPhone 6s | 7.1mm | 143g |
| Sony Xperia Z5 | 7.3mm | 154g |
| Samsung Galaxy Note 5 | 7.6mm | 171g |
| Google Nexus 5X | 7.9mm | 136g |
It’s not a change most will notice as phones have gradually gotten thicker and heavier over the course of years, as more advanced technology gets introduced. Pick up an old smartphone in your drawer, and you’ll quickly notice just how heavy your current phone is – even if it’s not a chonk like the Xiaomi 15 Ultra.
The question is, then, with the release of the ultra-thin and ultra-light Galaxy S25 Edge, and with the rumoured iPhone 17 Air later this year, are we headed back to where we were 10 years ago? In terms of overall thickness and weight, at least, we could well be.
