SJCAM SJ4000 Dual Screen 4K 30fps Action Camera 2.0" Rear + 1.3" Front Screen 170° Wide-Angle 30M Waterproof 2.4G WiFi Anti-Shake Car Mode Loop Recording Sports Camera for Motorcycle Bicycle Helmet Diving

SJCAM SJ4000 Dual Screen 4K 30fps Action Camera – 2.0" Rear + 1.3" Front Screen 170° Wide-Angle 30M Waterproof 2.4G WiFi Anti-Shake Car Mode Loop Recording Sports Camera for Motorcycle / Bicycle / Helmet / Diving

A versatile and beginner-friendly action camera – the SJCAM SJ4000 Dual Screen 4K Action Camera. Featuring 4K 30fps video, a 2.0" rear main screen and 1.3" front selfie screen, 170° super wide-angle lens, 30M waterproof (with included waterproof shell), 2.4G WiFi, anti-shake stabilization, car mode, loop recording, and a Sony sensor, the SJ4000 is perfect for motorcycle riding, cycling, helmet mounting, diving, outdoor sports, and everyday adventures.

Key Features

• Action Camera Type: SJCAM SJ4000 Dual Screen 4K Sports Action Camera for Motorcycle, Bicycle, Helmet & Diving.
• 4K 30fps Video: 4K (3840×2160) – 4x the clarity of traditional 1080P for stunningly detailed footage.
• Dual Screen – 2.0" Rear + 1.3" Front: 2.0" HD main screen for playback and control. 1.3" front screen for accurate selfie framing – no more blind shooting.
• 170° Super Wide-Angle Lens (F2.2): Ultra-wide field of view with AI distortion correction for natural, immersive footage.
• 30M Waterproof (with Waterproof Shell): Dive, surf, and swim up to 30m depth. Waterproof shell included.
• Anti-Shake Stabilization: Smooth, stable footage even while running, cycling, or riding on rough roads.
• 2.4G WiFi: Stable 2.4GHz WiFi transmission – connect smartphone for live preview, video management, and real-time sharing.
• Car Mode (Dashcam Mode): Use with car suction cup accessory as a driving recorder for real-time road monitoring.
• Loop Recording: Auto-overwrites oldest footage for continuous uninterrupted recording.
• Time-Lapse & Slow Motion: Multiple shooting modes – normal, time-lapse, loop, car mode.
• Sony Sensor (12MP): Sharp, vibrant photos and video.
• 900mAh Removable Battery: Up to 100 minutes runtime. Rechargeable and replaceable.
• Built-in Mic.
• MicroSD / TF up to 128GB (not included in No Memory Card variant).
• CE, FCC & RoHS Certified.

6 Reasons to Choose the SJ4000 Dual Screen

• ✅ 4K/30fps Ultra HD Video
• ✅ Dual Screen (2.0" Rear + 1.3" Front Selfie)
• ✅ 170° Super Wide Angle
• ✅ 30M Waterproof (Shell Included)
• ✅ Loop Video Recording
• ✅ 2.4G WiFi Interconnection

Fitment / Ideal Use Cases

• Motorcycle Riding & Helmet Camera
• Bicycle & Cycling
• Diving & Water Sports (30M waterproof)
• Outdoor & Extreme Sports (hiking, skiing, fishing)
• Car DVR / Dashcam Mode
• Selfie & Vlogging (1.3" front screen)
• Travel & Self-Driving Tours

Variants & Pricing

• No Memory Card – $137
• Add 32GB SD Card – $157
• Add 64GB SD Card – $164
• Add 128GB SD Card – $189

Specifications

• Brand: SJCAM
• Model: SJ4000 Dual Screen
• Video Resolution: 4K (3840×2160) 30fps
• Photo Resolution: 12MP / 16MP
• Sensor: Sony Series (12MP)
• Aperture: F2.2
• Rear Screen: 2.0" HD
• Front Screen: 1.3"
• View Angle: 170°
• Waterproof: 30M (with waterproof shell)
• Anti-Shake: Yes
• WiFi: 2.4GHz
• Car Mode: Yes
• Loop Recording: Yes
• Video Modes: Normal, Time-lapse, Loop, Car Mode
• Battery: 900mAh Removable (<100 min)
• Memory: MicroSD / TF up to 128GB
• Video Format: MP4 (H.264)
• Dimensions: 29.8 × 59.2 × 41mm
• Operating Temperature: -10°C to +40°C
• Certification: CE, FCC, RoHS
• Origin: Mainland China