In the ever-evolving dash cam market of 2025, the Blueskysea B4K Series offers an impressive combination of 4K video resolution, discreet design, and dual-channel capabilities — all at a very affordable price. Often overlooked in favor of bigger brands like VIOFO or Vantrue, Blueskysea has carved out a niche for itself by delivering value-packed cameras for under $150.
If you’re in the market for a reliable 4K dash cam without spending a fortune, the B4K Series may be the right choice. This article explores the Blueskysea B4K price, features, specifications, and comparisons for 2025.
💰 Blueskysea B4K Series Price in 2025
| Model Variant | Channels | Approx. Price (USD) |
|---|---|---|
| Blueskysea B4K (Front Only) | 1CH (Front) | $89 – $109 |
| Blueskysea B4K Dual | 2CH (Front + Rear) | $119 – $139 |
| Blueskysea B4K + GPS Bundle | Front + GPS | $129 – $149 |
| Blueskysea B4K + Hardwire Kit | 2CH + Parking Mode | $149 – $159 |
🛒 Prices may vary slightly by region and bundles, especially when including accessories like GPS mounts or SD cards.
📷 Key Features of Blueskysea B4K Series
| Feature | Details |
|---|---|
| Front Camera | 3840×2160p (4K UHD @ 30fps) |
| Rear Camera | 1920×1080p Full HD (optional) |
| Image Sensor | Sony IMX415 (Front), GC2053 (Rear) |
| Field of View | 170° (Front), 140° (Rear) |
| Built-in Screen | 2.0” LCD Display |
| Video Codec | H.265 (HEVC) |
| Loop Recording | Yes (auto-overwrites old files) |
| G-Sensor | Emergency file lock during impact |
| Parking Mode | Yes (with hardwire kit) |
| Built-in Wi-Fi | Yes, with support for mobile app |
| GPS Support | Optional module |
🔍 4K UHD Clarity at a Budget Price
The Blueskysea B4K records crisp, detailed 4K UHD video at 30fps, making it easy to capture license plates, signs, and road conditions clearly — day or night.
Paired with a Sony IMX415 sensor, it delivers competitive image quality that rivals dash cams twice its price. The 170° front lens offers excellent wide-angle coverage with minimal distortion.
🌙 Night Vision Performance
Using WDR (Wide Dynamic Range) and the advanced Sony sensor, the B4K performs surprisingly well in low-light scenarios such as:
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Dim city streets
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Tunnels
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Underground parking lots
The rear camera (on the dual version) captures clear footage at 1080p and is designed to resist glare from headlights or taillights.
📲 Wi-Fi & Mobile App Support
The Blueskysea Dash Cam app (available on iOS and Android) allows you to:
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Preview real-time footage
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Download and share clips instantly
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Adjust camera settings remotely
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Format SD card or check storage
🔗 Connect via built-in 2.4GHz Wi-Fi. The app is intuitive and frequently updated by Blueskysea.
🚗 GPS and Driving Data Logging
Though not built-in, the B4K series supports an external GPS module, which enables:
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Real-time location tracking
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Speed data overlay on video playback
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Route history in the app or on PC viewer
This is especially useful for fleet drivers, rideshare services, or for insurance evidence in case of a dispute.
🔌 Parking Surveillance
With a hardwire kit, the B4K activates parking mode, which includes:
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Impact-triggered recording: Records short clips when motion or vibrations are detected
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Time-lapse recording: Saves storage by capturing continuous footage at low frame rate
This offers peace of mind when your car is parked in public spaces.
⚖️ Blueskysea B4K vs Other Budget 4K Dash Cams
| Feature | B4K Dual | 70mai A800S | Rexing V1-4K Plus | VIOFO A119 V3 |
|---|---|---|---|---|
| Resolution (Front) | 4K @ 30fps | 4K @ 30fps | 4K @ 30fps | 2K QHD @ 60fps |
| Rear Cam | 1080p (optional) | 1080p (optional) | 1080p (optional) | None |
| GPS | Optional | Built-in | Optional | Optional |
| Parking Mode | Yes | Yes (via HWK) | Yes (via HWK) | Yes |
| Price (2CH) | ~$129 | ~$159 | ~$199 | ~$119 |
✅ The Blueskysea B4K holds a strong position for buyers wanting 4K + rear camera at under $140, making it one of the best value picks for 2025.
🙋 Frequently Asked Questions (FAQ)
❓ Does Blueskysea B4K support voice control?
No, it does not. All controls are physical or through the mobile app.
❓ What type of microSD card is recommended?
A U3-rated microSD card (Class 10 or above) is recommended, up to 256GB. Always format the card in-camera before use.
❓ Is installation easy?
Yes, the camera uses adhesive mounting and comes with a 12V power cable. Rear camera installation may require basic routing skills.
✅ Final Thoughts: Should You Buy the Blueskysea B4K in 2025?
The Blueskysea B4K Series is a top contender in the budget 4K dash cam market. It’s perfect for users who want reliable footage, smart features, and optional GPS without overpaying.
Why It’s Recommended:
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✅ 4K resolution with Sony IMX sensor
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✅ Dual-channel for front & rear coverage
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✅ Wi-Fi and app support
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✅ GPS-enabled (optional)
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✅ Ideal for budget-conscious drivers
Whether you’re a commuter, rideshare driver, or new vehicle owner, the B4K gives you solid peace of mind on the road — at a very wallet-friendly price.
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