What is 防滴スマホホルダー(縦横対応)?
Meet the product that's quietly taken over Japanese bathroom routines — Daiso's Splash-Proof Smartphone Holder (Portrait & Landscape Compatible), priced at just ¥220 (roughly $1.50). For less than a cup of convenience-store coffee, you get a wall-mounted phone case that lets you watch, scroll, and swipe in steamy, wet environments without flinching.
The body measures 19.2 × 11 × 2.5 cm and is made from polystyrene and PET. The clear front cover is the star of the show — it's a transparent PET film that seals your phone inside while still allowing full touchscreen response when the screen is pressed firmly against it. No stylus, no fumbling with soaking wet fingers on an exposed screen. The interior cavity fits phones up to approximately 8.5 cm (H) × 17.5 cm (W), which comfortably accommodates most modern smartphones including larger models. The front cover opens a full 90 degrees and locks shut with a satisfying center-press button at the top.
Mounting is handled by two included adhesive sheets (8 × 8 × 0.5 cm each), compatible with tiles, glossy plastic surfaces, and stainless steel — essentially everything you find in a bathroom or kitchen. A rear groove on the holder slots onto the adhesive sheet's raised tab, meaning you can detach and reattach the holder without disturbing the wall mount. Portrait and landscape orientations are both supported, so whether you're catching a YouTube video horizontally or reading a recipe vertically, you're covered. One important caveat: this is splash-proof, not waterproof — avoid direct showerhead spray or submersion.
Source: daisonet.com

How to Use It — Hack Ideas
Primary Use — Bathroom Entertainment Hub: Clean and dry your wall surface, peel the adhesive film, and press the sheet firmly in place. Pop your phone into the holder, lock the cover, slot the holder onto the mount, and you're streaming in the tub in under two minutes. The touch-through PET panel means you can pause, skip, or adjust volume without ever opening the case. Genius.
Hack #1 — Kitchen Recipe Station: Stick one adhesive sheet to your backsplash tile above the counter. Now your phone sits at eye level, sealed away from oil splatter and sauce drips, while you follow a recipe hands-free. Rotate to landscape for wide video tutorials. This alone justifies the ¥220 price tag for home cooks.
Hack #2 — Kids' Bedside Story Player: Mount the holder on a smooth bedroom wall at child's-eye height. Load up an audiobook or animated story, lock the phone inside, and little hands can tap through chapters safely — no risk of dropping the phone or accidentally opening apps. The enclosed case also means no sticky fingerprints directly on your screen.
A third bonus idea: stick it inside a camper van or caravan on any smooth panel surface as a GPS display holder. It's not rated for outdoor use, but for dry, sheltered interiors it works beautifully.
Source: daisonet.com
Reviews & Verdict
Social buzz around this holder has been genuinely enthusiastic. Multiple lifestyle creators with engagement ranging from the dozens to over a thousand likes per post have highlighted it as a standout Daiso find — rare praise in a sea of 100-yen content. The recurring theme? People are surprised it actually works. The touch-through sensitivity gets called out repeatedly as the unexpected highlight.
Community sentiment skews positive for bathrooms and kitchens specifically. Users appreciate the dual-orientation support and the detachable mount system, which lets them move the holder between rooms using the second included adhesive sheet. A 3-children household mom noted it dramatically reduced "can I watch something while I help with bath time?" negotiations — practical in the most relatable way.
The main caveats echoed across reviews: adhesive residue can remain if the sheet is removed from painted or delicate surfaces (stick to tile and stainless as recommended), and the splash-proof seal is not a substitute for a proper waterproof case if you're clumsy with the showerhead. A few users also noted that very thick phone cases may reduce touchscreen responsiveness through the PET cover. At ¥220, the expectation ceiling is appropriately managed, and for the vast majority of use cases, this holder delivers well above it.
Bottom line: if you've ever balanced your phone on a shampoo bottle while trying to follow a workout or watch a drama in the bath, this is the ¥220 fix you didn't know was waiting for you.
Source: daisonet.com
Value Score: 86/100
Strong price-to-quality ratio at ¥220 with dual adhesive sheets and portrait/landscape flexibility earns serious points; the touch-through PET functionality and kitchen hack potential push practicality high, with only modest marks deducted for the functional-but-basic design aesthetic. Great value, worth every yen.