Compact, lightweight underwater imaging for your smartphone. The SeaLife SportDiver (SL400-U) is almost 20% lighter than the larger SportDiver Ultra, making it the ultimate travel-friendly housing. Rated waterproof to 130 feet (40 metres). The SportDiver (OG) fits standard-sized Android models and iPhones from iPhone 11 through iPhone 17 Pro, giving you full camera control with near-neutral buoyancy underwater.
Key Features & Highlights
Ultra-Lightweight Travel Design: Weighing less than 1.5 lbs (641 g), the SL400 is ~20% lighter than the SportDiver Ultra, offering a compact footprint and nearly neutral buoyancy in water.
Smartphone Compatibility: Fits standard Android models and iPhones from iPhone 11 through iPhone 17 Pro (Note: iPhone 17 Pro Max and larger Ultra-sized Android phones require the SportDiver Ultra SL405).
Glove-Friendly Ergonomics: Built with a large shutter lever and rear control buttons designed for seamless operation, even when wearing cold-water dive gloves.
Dual Leak Alarms: Outfitted with an internal moisture sensor and a vacuum pressure alarm that provide instant on-screen warnings, audible alerts, and LED indicators if the waterproof seal is compromised.
Pro Camera Controls via Free App: The native SportDiver app connects via Bluetooth® LE 5 with no ads or in-app purchases. Adjust Zoom, Exposure (EV), Focus, White Balance, Lens Selection, RAW+JPEG, Live Photo, and Video Stabilization on supported models.
Rugged Heavy-Duty Construction: Built from polycarbonate, stainless steel, aluminum, and optical-grade glass with a cam-lock sealing latch and TPE O-ring.
What’s Included in the Box
SeaLife SportDiver Smartphone Housing (SL400)
Removable Underwater Color-Correction Red Filter (with safety tether)
Vacuum Air Pump
Rubber Grip Tabs & Holding Spring Insert
Spare TPE O-Ring & O-Ring Lubricant
O-Ring Removal Tool
Wrist Lanyard with Clip
Moisture Muncher Anti-Fogging Sample Capsule
AAA Alkaline Batteries (2)
Deluxe EVA Travel Case
Sleek, Travel-Ready Underwater Performance
At under 1.5 pounds, the SportDiver SL400 is engineered for divers and snorkelers seeking a compact, high-performance housing without the extra bulk. The optical glass lens port ensures maximum light transmission, while the included removable red color-correction filter restores natural underwater hues washed out at depth.
Maximum Gear Protection & Peace of Mind
Your smartphone is suspended safely inside the housing using rubber grip tabs and a heavy-duty holding spring that provide shock protection. The dual leak detection system continuously monitors vacuum pressure and internal moisture, giving you total confidence underwater. An included Moisture Muncher capsule prevents internal condensation and lens fogging.
Seamless Native App Integration
The free SportDiver app leverages your smartphone's native camera engine using Bluetooth® LE 5—no physical buttons touch your phone's screen. Switch instantly between photo and video modes, review full-resolution media with a vertical thumbnail strip underwater, and automatically save all captures directly to your phone's native camera roll.
Technical Specifications
Feature
Specification
Depth Rating
130 ft / 40 m
Housing Weight
1.41 lbs / 641 g
Power Supply
2x AAA Batteries (50+ hours continuous use)
Wireless Connectivity
Bluetooth® Low Energy 5 (LE)
Mounting Threads
3x 1/4-20 Standard Tripod Mounts
Seal Type
TPE O-Ring with Cam-Lock Latch & Vacuum Seal System
App Compatibility
iOS & Android (Free download, no ads or in-app purchases)
Important Compatibility Note:
Some camera settings may not be accessible depending on your phone make and model or conflicting device settings. Check the Apple App Store or Google Play Store for the latest SportDiver app updates, or consult our compatibility checker before purchasing.
