Night Owl Optics NOB3X-DG 3x42
A $60 night vision binocular for occasional wildlife watching from a porch or a tripod. Night Owl publishes little about its image quality.
Amazon $59.99$59.99
The Night Owl Optics NOB3X-DG 3x42 and the Rexing B1 are evenly matched, rated 3.3 and 3.3. The Night Owl Optics NOB3X-DG 3x42 leads on value. The Rexing B1 wins on claimed range and warranty. The Night Owl Optics NOB3X-DG 3x42 costs $139.99 less ($59.99 vs $199.98).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Rexing B1
A high-magnification AA-powered night vision binocular for watching wildlife at range. Its small screen and low-resolution recording are dated.
Amazon $199.98$199.98
Which should you buy?
- Choose the Night Owl Optics NOB3X-DG 3x42 for value ($59.99 vs $199.98).
- Choose the Rexing B1 for claimed range (984 ft claimed vs 394 ft claimed) and warranty (1.5-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every binoculars and goggles digital night vision device; a clear win is highlighted. How we rank explains each one.
| Factor weight | Night Owl Optics NOB3X-DG 3x42 | Rexing B1 |
|---|---|---|
| Overall rating | 3.3/5 | 3.3/5 |
| Image 25% | 50 sensor and screen resolution not published (neutral score used) | 50 sensor and screen resolution not published (neutral score used) |
| Optics 15% | 57 3x optical, 42 mm objective | 58 10x optical, 25 mm objective |
| Runtime 15% | 50 runtime not published (neutral score used) | 50 6 h stated runtime |
| Value 15% | 100 $59.99 | 48 $199.98 |
| Waterproofing 10% | 50 water resistance not published (neutral score used) | 75 IP56 |
| Warranty 10% | 0 1-year warranty | 12 1.5-year warranty |
| Recording 5% | 50 records, resolution not published (neutral score used) | 39 records 720p |
| Claimed range 5% | 17 394 ft claimed | 74 984 ft claimed |
Specifications
| Night Owl Optics NOB3X-DG 3x42 | Rexing B1 | |
|---|---|---|
| Image | ||
| Type | Binocular | Binocular |
| Sensor | CMOS | CMOS |
| Screen | - | 2.3 in TFT LCD |
| Optics | ||
| Optical magnification | 3x | 10x |
| Digital zoom | 2x | 4x |
| Objective lens | 42 mm | 25 mm |
| IR illuminator | Yes | 850 nm |
| Claimed range in darkness | 394 ft | 984 ft |
| Recording and power | ||
| Video recording | Yes | 720p |
| Phone app / Wi-Fi | No | No |
| Battery | 2 x CR123A (not included) | 6 x AA (not included) |
| Runtime at night | - | 6 h |
| Build | ||
| Head mount included | No | No |
| Water protection | - | IP56 |
| Weight | 15.3 oz | - |
| Warranty | 1 year | 1.5 years |