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
I had never used a crossbody phone strap, so I bought three options for my iPhone 17 Pro Max: the MOFT phone strap (about ¥4,000), a cheap Jazolmky strap (about ¥1,200), and a standalone COCASES metal connector. The straps themselves were all fine. What separated them was the small connector plate that sits between the phone and the case. MOFT’s was the best made by a clear margin.
| Product | What’s in the box | Connector fit |
|---|---|---|
 MOFT | Strap + metal and fabric connectors | Fit most of the cases I tried; one-touch length adjustment |
 Jazolmky | Strap + metal connector | Large gap; the case lifts off the phone |
 COCASES | Metal connector only | Narrow slot; very case-dependent |
What I tested
- iPhone 17 Pro Max with several cases, including a PITAKA aramid case, a Peak Design case and a folio case
- Connectors that come out of the charging port area versus ones that use the speaker holes on both sides
- Carrying the phone on the strap with three cards in a folio case
What I found
- Center (charging-port) connectors worked with most of my cases. Two-point connectors that use the speaker holes need a case with open speaker cut-outs; Apple’s own case closes them off but has its own strap hole.
- COCASES: the slot is narrow. It didn’t work with a case I tried earlier, and with this case it just fits but lifts slightly.
- Jazolmky: the strap is easy to adjust by pulling, and the muted blue suits anyone, but the connector leaves a big gap. On a stiff PITAKA case it was hard to fit and lifted a lot.
- MOFT: includes both a fabric and a metal connector. The metal one couldn’t clear the thick bottom edge of my Peak Design case and can shift slightly over the speaker holes on thin cases, but it was still the best-sized of the three. Length is set with a buckle, then a button lets it out and a pull shortens it.
- Folio cases: the flap doesn’t flop open, but the phone hangs upside down, so cards point downward and could slip out without you noticing.
Fabric connectors fit almost any case, but they can wear and tear over time. If one snaps while the phone is on your shoulder, the phone falls, so check them regularly.
Who it’s for
- Parents who want the phone out instantly for photos, without digging into a pocket
- Anyone with a big phone that feels awkward in a pocket
- Skip it, or choose carefully, if you use a folio case with cards or a case with a thick bottom edge
Watch the video
The video is in Japanese. The COCASES connector is tested from about 05:00, the Jazolmky strap from about 07:00, the folio-case test from about 09:35 and the MOFT strap from about 11:30.
Limitations
These are first impressions, not a long-term test, using my own cases. The Jazolmky and COCASES products are Amazon Japan listings and may not be sold elsewhere. Prices are in yen at the time of recording.
Products
MOFT phone strap (upgraded version): on Amazon Japan
Jazolmky crossbody phone strap: on Amazon Japan
COCASES strap holder (0.2 mm double ring): 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 Cases (56) →Browse all English reviews →
This review is also available in Japanese.