Syncwire Stick-On Phone Ring Review: 18.9 g, About ¥1,000, and Better Than MagSafe on Some Cases

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 Syncwire stick-on phone ring is a plain, non-MagSafe ring that you attach with double-sided tape. At 18.9 g and about ¥1,000, it turned out to be a very comfortable option for cases that don’t support MagSafe — as long as you’re happy to leave it stuck in one place.

What I tested

Syncwire stick-on phone ring (non-MagSafe), blue
A soft, cheap TPU case with a wave pattern from a Japanese 100-yen shop
An aramid-fibre case without MagSafe
For reference: the Syncwire MagSafe double ring I use every day

What I found

It weighs 18.9 g in my measurement. Even very thin MagSafe rings usually go over 20 g.
It is about 4.6 mm thick and about 35.2 mm across — small, but a little chunkier than the thinnest 3 mm rings.
The ring itself is not a magnet. It sticks to magnetic mounts, but not to a plain steel surface.
On the soft TPU case it held firmly. Because the pad is small, it copes with a flexible case better than a large stick-on MagSafe plate does.
On the textured aramid case it came off when I pulled hard. I had re-stuck it once, which may have weakened the tape. Smooth surfaces work best.
The biggest advantage: you can place it lower than the MagSafe position — around the Apple logo — where it is easier to hook a finger through. The phone still stood steadily as a stand from there.
Out of the box the hinge was stiff enough to work as a stand in portrait and landscape. The rotation felt a little stiff.

The Syncwire stick-on ring on a kitchen scale reading 18.9 g — 18.9 g on my scale

Syncwire stick-on ring attached to a soft TPU case — Stuck on a 100-yen-shop TPU case

	Measured / at recording
Weight	18.9 g
Thickness	approx. 4.6 mm
Diameter	approx. 35.2 mm
Price (Amazon Japan, at the time of recording)	¥999 in black, around ¥1,100 for other colours

Who it’s for

People with a case that doesn’t support MagSafe who still want a ring
Anyone who prefers the ring lower than the MagSafe position
Not for people who want to swap the ring on and off, or use it with a MagSafe car mount

Watch the review

【割り切れば幸せ？】MagSafeじゃなくて良い？Syncwireの「貼り付け型」スマホリングが安くて超快適だった

The video is in Japanese. Useful points: around 3:50 weighing the ring, 6:20 sticking it on the soft TPU case, 10:30 the aramid case, and 12:40 placing it lower on the phone.

Limitations

I tested it right after unboxing. Some Amazon reviews say the hinge loosens fairly soon, and I can’t say yet how it holds up after months. I also wouldn’t trust the tape on a soft case with a car mount. Prices were Amazon Japan’s at the time of recording.

Products

SYNCWIRE stick-on phone ring (non-MagSafe): on Amazon Japan

SYNCWIRE MagSafe phone ring (double ring), the one I use daily: 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