TELESIN Universal Diving Phone Case Review: Affordable Underwater Photography for Everyone
The TELESIN Universal Diving Phone Case — complete with dive handle, vacuum pump, safety rope, and lens cloth
Looking to capture your dives without investing in an expensive underwater camera? The TELESIN Universal Diving Phone Case lets you take your smartphone down to 20 meters — with Bluetooth shutter control, a vacuum seal system, and wide phone compatibility.
Not everyone can drop thousands of dollars on a dedicated underwater camera setup. For beginner and intermediate divers like me, the smartphone is already in our pocket — and with the right housing, it can capture surprisingly good underwater footage. The TELESIN Universal Diving Phone Case promises to turn your iPhone or Android into a capable underwater camera for under $80. Does it deliver? Let's find out.
First Impressions & Build Quality
The TELESIN case feels solid right out of the box. It's made from a combination of ABS, PC, and aluminum alloy — lightweight at just 397 grams but clearly built to handle the pressure at depth. The large camera window is the standout feature: it's a high-transmission glass lens claiming 97% light transmittance, which means your photos and videos should come out clear without noticeable distortion.
The case comes with everything you need in the box: the main housing, a comfortable dive handle with grip, a vacuum pump for leak testing, a safety hand rope, lens cloth, and a USB charging cable. The handle attaches securely to the case and has two standard 1/4" threaded mounting holes — handy if you want to rig it to a tray or arm later.
Phone Compatibility
One of the biggest selling points is compatibility. The case fits 99% of straight-screen smartphones between 5.4 and 6.9 inches — that includes iPhone 14/15/16 series, Samsung Galaxy S23/S24, Google Pixel 8, and most Android devices. The interior has foam padding inserts that you can adjust to center your phone properly.
⚠️ Compatibility Notes
- ✗ Curved-screen phones — Not compatible due to the seal design
- ✗ Thick protective cases — You'll need to remove your phone case before inserting
- ✗ Popsockets or phone grips — Must be removed
- ✓ Thin film screen protectors — Those work fine
Underwater Performance & Controls
The case communicates with your phone via Bluetooth. To pair, you press and hold the shutter button for 2 seconds — the case appears as "TELESIN_SDC" in your phone's Bluetooth settings. Once connected, you get five physical buttons: shutter, zoom in, zoom out, and mode controls. This means you can switch between photo and video modes, zoom, and take shots without ever touching your phone's screen.
The grip is genuinely good — the included handle has a textured surface that feels secure even with wet hands or gloves. The large camera window means you can frame your shot through the glass without fighting with positioning, and the 97% transmittance lens delivers clear images.
For depth rating, TELESIN rates this case to 20 meters (66 feet) with an IP68 waterproof rating. That's enough for most recreational diving, snorkeling, and freediving. The vacuum pump sealing system is a nice touch: you pump out the air before diving and if the pump stays firm, you know the case is properly sealed. It adds a minute to your pre-dive routine but gives real peace of mind.
What's Missing? The Downsides
For the price, there are some compromises you should know about:
❌ No Red Filter Attachment
At depths below 5-6 meters, red light wavelengths get absorbed by water, turning your photos green/blue. Serious underwater photographers use red filters to restore natural colors. The TELESIN case has no mounting point for a red filter, so you'll need to color-correct in post-processing or use the free TELESIN color correction app (which helps, but isn't as good as a physical filter).
❌ No Cold Shoe Mount
There's no cold shoe or accessory mount on top of the case. This means you can't attach a video light, focus light, or external microphone. If you plan to shoot video in low-light conditions or at night, you'll need to figure out a separate mounting solution using the 1/4" threaded holes on the handle.
❌ Only 20m Depth Rating
20 meters is enough for most recreational diving, but if you're doing deep dives (or plan to get your Advanced Open Water certification), you'll quickly exceed this limit. For comparison, purpose-built underwater housings for GoPros and compact cameras typically go to 40-60 meters.
Who Is This For?
The TELESIN case is ideal for:
- • Beginner divers who want to document their dives without buying a dedicated camera
- • Snorkelers and freedivers who stay in the 0-20m range
- • Travelers who don't want to pack bulky camera gear
- • Anyone testing the waters of underwater photography before committing to a dedicated setup
It's not the right choice for advanced underwater photographers who need red filters, external lighting, or deeper depth ratings. For them, a proper underwater housing for a compact camera or GoPro would be a better investment.
Final Verdict
The TELESIN Universal Diving Phone Case is an excellent entry point into underwater smartphone photography. At around $80 (often on sale for less), it's a fraction of the cost of dedicated underwater housings. The build quality is solid, the Bluetooth controls work reliably, and the phone compatibility is impressively broad.
What it does well: wide phone compatibility, large clear camera window, comfortable grip, Bluetooth shutter, easy vacuum seal system.
Where it falls short: no red filter mount, no cold shoe for accessories, limited to 20m depth, Bluetooth battery needs occasional charging.
If you're a beginner diver looking to capture your underwater adventures without breaking the bank, the TELESIN case is a solid choice. Just be aware of its limitations — and plan to color-correct your photos in post-processing.
"The best camera is the one you have with you — and the TELESIN case makes sure you can take it to 20 meters."
Where to Buy
The TELESIN Universal Diving Phone Case is available on:
- TELESIN Official Store — $79.99 (often on sale)
- Tokopedia — Available in Indonesia
- Shopee Indonesia — Local purchase option
- Amazon — US and global
Happy diving, and don't forget to share your underwater shots! 🦎🌊
Written by Satria
A passionate beginner diver who discovered the underwater world in November 2024. Sharing the journey from Open Water certification to exploring Indonesia's best dive spots — one bubble at a time.