Sinjimoru M-Band Stand Review: A MagSafe Card Wallet with a Band and a Stand

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 Sinjimoru M-Band Stand is a MagSafe card wallet with a stretchy finger band and a fold-out stand. It holds about three cards, works well on an iPhone, and makes a great stand for a foldable — but on a wide-opening foldable like the Galaxy Z Fold8 it sticks out past the phone. A viewer recommended it in the comments, so I bought one myself.

Sinjimoru M-Band Stand MagSafe card wallet — The Sinjimoru M-Band Stand (54 g on my scale)

What I tested

Sinjimoru M-Band Stand (MagSafe card wallet with band and stand)
On an iPhone, on a Galaxy Z Fold8, and against a foldable iPhone mock-up I made
Compared with the SYNCWIRE MagSafe ring I use every day

What I found

It weighs 54 g, or 67.6 g with three cards inside. My SYNCWIRE ring is 24 g, so this is roughly double.
Three cards fit comfortably once you pull the retaining flap out. The flap stops cards falling out, but it makes taking a card out a bit fiddly.
It is 6.7 mm thick empty and 8.7 mm with three cards.
On the iPhone the magnets hold firmly, and the stand rotates for portrait or landscape. The hinge is only moderately stiff, but it stops against the wallet so portrait use is stable.
On the Galaxy Z Fold8 it overhangs noticeably, because the MagSafe position ends up low on that phone. Opened up, though, it is an excellent stand.
On a taller foldable (an Ultra-type model) or an iPhone, it should fit much better.

The M-Band Stand opened as a stand on an iPhone — The stand rotates for portrait or landscape

Compared with a MagSafe ring

	Sinjimoru M-Band Stand	SYNCWIRE MagSafe ring
Weight (measured)	54 g (67.6 g with 3 cards)	24 g
Grip	Stretch band	Finger ring
Cards	About 3, with a flap	None

Who it’s for

People who want to leave the wallet at home and carry just a few cards with their phone, and people who dislike how bulky folio cases get once they’re full of cards. If you want the lightest possible ring, or you use a foldable that opens into a wide screen, look elsewhere. Price at the time of recording: ¥2,384 on Amazon Japan (there is also a version without the band at the same price).

Watch the review

【これで財布いらない？】カード3枚＋スタンド＋グリップが全部入ったMagSafeカードケース

The video is in Japanese; YouTube can show auto-generated captions. Useful chapters: 02:15 weight vs. SYNCWIRE, 02:33 fitting three cards, 03:23 on an iPhone, 04:18 on the Galaxy Z Fold8, 08:03 thickness.

Limitations

I tested it briefly, so I can’t say yet whether the hinge loosens over time — that is my main worry. I didn’t test whether contactless payment works through the wallet while it is on the phone. The foldable iPhone fit is a guess based on my own mock-up.

Products

Sinjimoru M-Band Stand (MagSafe card wallet): on Amazon Japan

SYNCWIRE MagSafe ring stand: 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