BTech Spyphone Samsung Galaxy S21 is a fully functional smartphone with a hidden camera for covert recording.
The BTech Covert Spyphone S21 is a genuine Samsung Galaxy S21 smartphone, professionally modified to include a hidden camera system for discreet video and audio recording. By relocating the front camera to the top edge, the device enables ongoing surveillance without drawing attention, and everyday functionality remains unchanged.
Because this is a real Samsung Galaxy S21, it can be used like any other smartphone: place or receive calls, use apps, access the internet, and all the while covertly record in the background. The recording continues even when the screen is locked, allowing you to leave the device unattended—for example, on an office desk and still capture everything in the vicinity.
The covert recording is managed through a built-in app that looks like a regular app to others. Inside it, you can adjust settings like video quality, angle, and recording mode. Since the app records in the background, it allows you to continue using the phone as usual while recording discreetly and without drawing attention.
BTech Spyphone S21 Main Features:
- Covert camera placed at the top of the phone for natural handling
- Works like a normal Samsung Galaxy S21 with all regular apps
- Covert app for adjusting recording settings
- Background recording while using other apps
- Recording continues with screen locked
- Comes with a secret app to control the camera settings
- Optional 4G live feed and GPS tracking with external Desktop App
- Full support for Google Play and regular Android services
- Date and Timestamp overlay available
- Adjustable camera orientation (0°, 90°, 180°, 360°)
Samsung Galaxy S21 Specifications:
Triple Main Camera: 12 MP (wide), f/1.8, 26mm, with Dual Pixel PDAF and OIS64 MP (telephoto), f/2.0, 29mm, with PDAF,
OIS, Optical zoom - 1.1x & Hybrid zoom - 3x with 12 MP & , & (ultrawide lens), f/2.2, 13mm, with Super Steady video support
Covert (Selfie) Camera:10 MP, f/2.2, 26mm (wide), Dual Pixel PDAF
Features: LED flash, auto-HDR, panorama
Video: 8K @ 24fps4K @ 30/60fps1080p @ 30/60/240fps720p @ 960fpsHDR10+ video, stereo sound recording, gyro-EIS & OIS
Display Type: Dynamic AMOLED 2X, 120Hz refresh rate, HDR10+, 1300 nits peak brightness
Size: 6.2 inches (~87.2% screen-to-body ratio)
Resolution: 1080 x 2400 pixels, 20:9 ratio (~421 ppi)
Gorilla Glass Victus for front and back
Audio: 2-bit/384kHz audio
No 3.5mm headphone jack
Weight: 169 g
SIM:Nano-SIM and eSIM or Dual SIM (Nano-SIM, dual stand-by)
IP68 water and dust resistance
Battery:4000 mAh, non-removable
Charging: 25W wired (USB PD 3.0), 15W wireless (Qi), and 4.5W reverse wireless charging.
Fully Functional Samsung Galaxy Smartphone with Covert Recording Capabilities
The BTech Covert Spyphone S21 is based on an original Samsung Galaxy device, maintaining full functionality and everyday usability for personal or professional tasks. What sets it apart is the custom repositioning of the front camera to the top edge of the phone, enabling discreet recording without interfering with regular phone use. This design lets you use the device like a normal smartphone for browsing, calling, or using apps while it records in the background at the same time, adding an important layer of stealth and security for covert operations.
4G App and Server Communication
The version without 4G works like a regular smartphone and only exchanges data with Google servers, doesn't send information to other locations.
Covert Recording App for Adjusting Audio and Video Settings
The Spyphone S21 features a pre-installed control application, disguised as a standard game, that provides access to all covert recording functions. You can configure audio and video quality, select camera sources, enable timestamp overlays, and activate silent capture directly from the control app. The application operates in the background, allowing you to use all standard phone features, including gaming, messaging, and web browsing—without interrupting surveillance activities.
Seamless camera integration allows for discreet capture using natural device handling
With the top-mounted camera, users can hold the device upright or set it flat on a table, capturing footage in either portrait or landscape mode. Whether walking with the phone at your side or holding it like a regular device, the covert camera’s placement ensures realistic recording angles.
Adjustable Camera Orientation & Mirror Mode
The internal App allows camera rotation to 0°, 90°, 180°, or 270°, with a mirror mode and a simple "original state” reset option. This flexibility ensures optimal camera framing in all recording conditions.
Optional 4G Real-Time Streaming + Desktop Integration
When equipped with the 4G module, the BTech Covert Spyphone S21 can stream live video and GPS location to a centralized Desktop App. Up to 50 spyphones can be connected at once, enabling team-wide coordination for surveillance, tactical, or investigative operations. The Desktop App also allows remote video retrieval and dual-audio communication.
Secure VPN Connection & Full-Duplex Audio Support
The 4G live streaming feature is protected by secure VPN encryption, ensuring safe data transmission. The built-in Full-Duplex Audio function enables real-time, two-way communication with the connected PC or control station, improving coordination during remote operations.
Various Spy Smartphone models available
Currently, Samsung S9 Plus, Samsung S20, iPhone 14, iPhone 13, Redmi 6 Pro, and select no-brand smartphones are available for this spyphone integration. As new smartphone models are released, available options may change. For the most up-to-date list of supported models, feel free to contact us at
[email protected]
BTech Covert Spyphone S21 FAQs
Is the BTech Spyphone S21 a genuine Samsung Galaxy S21?
Yes, it is an original Samsung Galaxy S21 smartphone that has been professionally modified to include a covert camera system.
Can the device be used like a normal smartphone?
Absolutely. All regular features—including calls, apps, internet browsing, and messaging—work as on any standard Galaxy S21.
How does the covert camera work?
The front camera is discreetly repositioned to the device’s top edge, enabling ongoing, concealed video and audio recording without drawing attention.
Is there a visible sign that the device is recording?
No, recording is managed through a hidden app disguised as a game, so there are no obvious signs the phone is recording.
Can I adjust the camera settings and orientation?
Yes, you can configure audio/video quality, switch between camera angles, enable timestamps, and use mirror mode, all from the built-in covert app.
Does the device support remote live streaming and GPS tracking?
If equipped with the 4G module, it can stream live video and GPS data to a dedicated Desktop App, supporting team operations and remote access.
Will using the covert app affect normal phone use?
No, the recording app works in the background. You can use the device for gaming, messaging, or other tasks while recording discreetly.
Which smartphone models are supported?
Besides the Galaxy S21, current options include Samsung S9 Plus, Samsung S20, iPhone 14, iPhone 13, Redmi 6 Pro, and certain no-brand smartphones. Please contact us for the latest list of available models.
Note:
The phone features an integrated back case, designed as a permanent part of its durable construction.
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