This is the English edition of a review from my Japanese YouTube channel, iestaLife. I review gadgets from my home studio in Japan, so product links go to Amazon Japan.
Quick take
The Andobil MagRing Slim is a MagSafe phone ring sold as "ultra-thin, 2.5 mm". I measured it alongside two rings I already use, the BENKS ArmorPop Prestige and the EWA MagOne (3rd gen). It came out at about 3.6 mm, not 2.5 mm, but at 25.6 g it is still light, and the magnet on the outer side is among the strongest I have tried. For grip, my ranking is BENKS, then Andobil, then MagOne.

What I tested
- Andobil MagRing Slim (the ring under review)
- BENKS ArmorPop Prestige (my favourite for grip)
- EWA MagOne, 3rd generation (an ultra-light ring)
- Weighed each ring, measured thickness with calipers, and tried grip and stand use on an iPhone and on a car mount
What I found
- The Andobil weighed 25.6 g on my scale. Not as light as the MagOne (18.4 g), but still in lightweight territory.
- The listing says 2.5 mm, but even the thinnest part measured about 3.3–3.6 mm with calipers. It is a slim ring, just not the number on the label.
- Its biggest strength is the outer magnet. On a car mount, it was strong enough that the ring stayed on the mount rather than on the phone.
- The stand is very good: it stood steadily in both portrait and landscape, at angles from nearly flat to upright.
- Instead of putting a finger through the middle, you hook it over the ring. The rubber spring-back is a little firm, so this may come down to taste.


| Andobil MagRing Slim | BENKS ArmorPop Prestige | EWA MagOne (3rd gen) | |
|---|---|---|---|
| Weight (my scale) | 25.6 g | Not stated | 18.4 g |
| Thickness (my calipers) | About 3.3–3.6 mm (listed as 2.5 mm) | Not stated | The thinnest of the three |
| Grip ranking | 2nd | 1st | 3rd |
| Strong point | Very strong outer magnet, stable stand | Middle finger goes through the ring, so less fear of dropping | The lightest |
Who it’s for
If grip comes first, choose BENKS. If you want the lightest ring, choose MagOne. If you want a strong magnet and a stable stand, the Andobil is the one, and it suits people who use a magnetic car mount a lot.
The video is in Japanese.
Limitations
These are measurements of my own units with my scale and calipers. Grip is a personal judgement and depends on your hand size. I could not find a matching Amazon listing for the BENKS ArmorPop Prestige, so it is not linked below.
Products
Andobil MagRing Slim: on Amazon Japan
EWA MagOne (3rd generation): on Amazon Japan
The Amazon Japan links above are affiliate links. As an Amazon Associate, I earn from qualifying purchases. Check the listing for the exact model, current price and shipping availability in your region.
More reviews in English




All MagSafe Rings & Stands (49) →Browse all English reviews →
This review is also available in Japanese.

