Yuanzimoo HD Binoculars with Phone Adapter 12x42
- Magnification maximum: 12x
- Zoom Ratio: 12x
- Objective lens diameter: 42 mm
- Prism type: BAK4 Prism
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well-reviewed budget 12x42 for casual wildlife watching and travel, with a phone adapter that rewards a little patience.
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ASIN: B0FMRKJ22PModel: 1242Category: Binoculars
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Overview
A 12x42 compact binocular with BAK4 prisms and multi-coated optics for birding, safari and stadium use, sold in a camo finish with an included phone adapter for shooting stills and video through the lens.
- 12x42 optics with a 383ft field of view at 1000 yards
- BAK4 prisms and full multi-coating for low-light clarity
- Includes a smartphone adapter, case, strap and lens covers
- Foldable, compact body for travel and outdoor carry
Who it's for
Suits birdwatchers, cruise and safari travelers, and bow hunters who want a light, foldable binocular plus a way to capture what they see on a phone. Not aimed at buyers chasing tripod-grade optics or one-handed phone photography straight out of the box.
Pros and cons
- Sharp images reported at long range in daylight and low light
- Included phone adapter lets you shoot photos and video through the lens
- Foldable, grippy body fits a pocket or backpack
- Comes with case, lens covers and neck strap
- Phone adapter takes practice to align, easier with a second person
- No stated waterproof rating
Specifications
| Brand | Yuanzimoo |
|---|---|
| Model | 1242 |
| Dimensions & fit | |
| Objective lens diameter | 42 mm |
| Exitpupil diameter | 0.1 inches |
| Capacity & performance | |
| Diopter adjustment range | +/-5 Diopters |
| Age Range Description | Adult |
| Construction & materials | |
| Coating | Fully Multi-Coated |
| Color | Camo |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Magnification maximum | 12x |
| Zoom Ratio | 12x |
| Prism type | BAK4 Prism |
| Water resistance level | Waterproof |
| Focus type | Center Focus |
| Focus Description | Manual Focus |
| Low light technology | Yes |
| Features | Night Vision |
| Specific Uses | Bird Watching, Camping, Concert, Hiking & Outdoors, Hunting, Sport Watching |
Frequently asked questions
Does the Yuanzimoo 12x42 come with a phone adapter?
Yes, an adapter is included that fits most large smartphones with or without a case, letting you shoot photos and video through the eyepiece.
Does it fold down for travel?
Yes, the compact rhombic-grip body folds for easier storage in a pocket or backpack.