STELLAR 2.0 SQ50 Review: Rugged Thermal Scope with 2600m Detection and 11+ Hour Battery
Introduction to the STELLAR 2.0 Series
For shooters and outdoor professionals who prefer traditional form factors but want modern thermal technology, the HIKMICRO STELLAR 2.0 SQ50 delivers the best of both worlds. It combines a classic 30mm tube design with a powerful 640×512 thermal sensor, extended battery life, and advanced zeroing tools—offering precision and endurance for any mission.
Designed for Forest and Field
Built for hunters, search and rescue teams, and tactical operators, the STELLAR 2.0 SQ50 excels in forest, field, and low-visibility conditions—thanks to its high sensitivity and sharp thermal contrast.
Heritage Meets Innovation
With its tube-style housing, it feels just like a standard day scope. However, beneath its rugged exterior lies cutting-edge thermal performance and advanced electronics for a truly versatile optic.
Key Features of the STELLAR 2.0 Series
Thermal Imaging Performance
640 × 512 VOx Sensor @12μm
The SQ50 2.0 uses a VOx uncooled focal plane array sensor with a 12μm pixel pitch and 640 × 512 resolution, delivering exceptional image clarity and detail.
NETD < 20mK Sensitivity
Its thermal sensitivity of less than 20 millikelvin enables users to spot subtle heat signatures, even in fog, rain, or complete darkness.
Lens and Detection Range
50mm F1.0 Lens
With a wide aperture (F1.0), the 50mm lens captures more thermal radiation for improved image brightness and sharpness.
2600m Detection Capability
The SQ50 can detect human-sized heat signatures up to 2600 meters away, making it ideal for long-range identification and monitoring.
Display Technology and Image Quality
1920 × 1080 OLED Display
The SQ50 features a 0.49-inch semi-round OLED display with 1920 × 1080 resolution, providing clear, full-color thermal visuals for accurate targeting and scanning.
Palette and Brightness Control
You can toggle between Black Hot, White Hot, Red Hot, and Fusion, and fine-tune the tone (cold/warm), brightness, and contrast for optimal visibility in any setting.
Zoom and Magnification
3.3x–26.4x Digital Zoom
With an 8x digital magnification range, users can zoom in from 3.3x base to 26.4x, allowing for both wide-angle scanning and precise long-range targeting.
Field of View (FOV) Breakdown
- FOV at 100 meters: 15.4m × 9.2m
- Angular FOV: 8.8° × 5.3°
This balance provides broad situational awareness and deep zoom capability.
Zeroing and Recoil Functionality
Freeze Zeroing and Recoil Activation
The Freeze Zeroing feature lets users zero the scope after a shot is taken. It’s paired with recoil-activated recording (RAV) to automatically save footage when a shot is detected.
Five Zeroing Profiles
Save up to 5 different zeroing profiles, each with customizable settings for multiple rifles or ammunition types.
Recording, Storage, and Media
Video, Audio, Snapshots
Record everything in real time, including thermal video with sound, still snapshots, and PIP views for better post-analysis or content sharing.
Built-in 64GB Storage
The scope includes 64GB of internal EMMC storage, eliminating the need for external memory cards.
Connectivity and Smart Features
Hotspot Streaming
Stream live footage to a smartphone or tablet via Wi-Fi hotspot, enabling remote viewing, control, and media transfer with the HIKMICRO app.
Hot Track and Picture-in-Picture (PIP)
The Hot Track feature locks onto the warmest target, while PIP displays a zoomed view without losing your full FOV.
Battery and Power Management
11+ Hour Runtime
With dual internal batteries and a replaceable 18650 external battery, the SQ50 2.0 delivers over 11 hours of operation in typical use.
Dual Internal + External Battery Setup
Run on the internal pack or swap in an external cell for continuous use. Recharge quickly via USB Type-C with QC3.0 support.
Durability and Environmental Readiness
- IP67-rated for full waterproof and dustproof protection
- Withstands shocks up to 1000 g/0.4 ms
- Operational from -30°C to +55°C, perfect for all climates
User Interface and Ergonomics
Focus Ring and Diopter Adjustment
Manual focus and diopter control allow quick adaptation to different targets and users. Ergonomics are built around a 30mm tube, compatible with standard scope rings.
Specification Table: HIKMICRO STELLAR 2.0 SQ50
| Category | Specification |
|---|---|
| Thermal Sensor | VOx Uncooled Focal Plane Arrays |
| Resolution | 640 × 512 @ 12μm |
| Thermal Sensitivity | NETD < 20 mK (@25°C, F# = 1.0) |
| Frame Rate | 50 Hz |
| Lens | 50mm, F1.0 |
| Detection Range | Up to 2600 meters |
| Minimum Focus Distance | 5 meters |
| Magnification | 3.3× to 26.4× (8x digital zoom) |
| Field of View | 8.8° × 5.3° / 15.4m × 9.2m @ 100m |
| Display | 0.49″ OLED, 1920 × 1080 |
| Palettes | Black Hot, White Hot, Red Hot, Fusion |
| Diopter Adjustment | -5D to +5D |
| Eye Relief | 55 mm |
| Exit Pupil | 6 mm |
| Zeroing Profiles | 5 |
| Recording | Video, Audio, Snapshots, Recoil-Activated |
| Storage | 64GB Built-in EMMC |
| Wi-Fi & App Support | Yes (Hotspot, HIKMICRO Sight App) |
| Smart Features | PIP, Hot Track, Freeze Zeroing, Distance Measurement |
| Battery Type | 2× internal Li-ion + 1× replaceable 18650 external battery |
| Battery Life | 11 hours (typical, Wi-Fi off) |
| Charging Port | USB Type-C (DC 5V/2A, QC3.0 supported) |
| Dimensions | 425.4 × 84 × 71.4 mm |
| Weight | 950 g (without external battery) |
| Mounting Interface | 30 mm Tube |
| Protection Level | IP67 |
| Operating Temperature | -30°C to +55°C |
| Recoil Resistance | Up to 1000 g/0.4 ms |
Pros and Cons of the STELLAR 2.0 SQ50
Use Case Scenarios for the SQ50
Hunters: Ideal for detecting game at long range across open fields or wooded environments.
Search & Rescue: Perfect for identifying missing persons in poor visibility or rugged terrain.
Law Enforcement: Effective for covert surveillance and thermal perimeter monitoring.
Conclusion: Is STELLAR 2.0 SQ50 Worth It?
The STELLAR 2.0 SQ50 is a high-performance thermal scope for professionals who appreciate traditional form, long battery life, and reliable precision. While it lacks the rangefinder and 3.0’s advanced display, it delivers excellent thermal resolution, recording features, and smart controls at a strong price-to-performance ratio.
FAQs About STELLAR 2.0 SQ50
Q1: Does the SQ50 support video and audio recording?
Yes, it supports both, including recoil-activated capture.
Q2: Can it be mounted on standard rifle setups?
Absolutely. It uses a 30mm tube, compatible with traditional scope mounts.
Q3: How long does the battery last?
Over 11 hours, with a combination of internal and external batteries.
Q4: What are the differences from STELLAR 3.0?
STELLAR 3.0 features higher display resolution, LRF, and ballistic tools, while SQ50 2.0 keeps a traditional build and longer battery life.
Q5: Is the device waterproof?
Yes, it’s IP67-certified, safe for use in rain, snow, or dust.
