SmallRig Wireless Video Phone Monitor

BH #SMWVPMV2 • MFR #4850B
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SmallRig Wireless Video Phone Monitor
Key Features
  • Compatible with iOS and Android
  • MagSafe Compatible Mount
  • 3 Brightness Settings, Mirror Mode
  • HD Synchronization up to 32.8 ft Away
The Wireless Video Phone Monitor from SmallRig is a screen monitoring solution for content creators using smartphones for video production. This sleek and compact monitor is compatible with both iOS and Android operating systems and supports all 4K format recording with the Blackmagic Camera app. It has triple-level brightness control for clear visibility even in direct sunlight and can be wirelessly paired with a phone up to 32.8' away, perfect for outdoor shooting. Pocket-sized and lightweight, equipped with a 1500mAh battery for two hours of work at full brightness.
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SmallRig 4850B Overview

The Wireless Video Phone Monitor from SmallRig is a screen monitoring solution for content creators using smartphones for video production. This sleek and compact monitor is compatible with both iOS and Android operating systems and supports all 4K format recording with the Blackmagic Camera app. It has triple-level brightness control for clear visibility even in direct sunlight and can be wirelessly paired with a phone up to 32.8' away, perfect for outdoor shooting. Pocket-sized and lightweight, equipped with a 1500mAh battery for two hours of work at full brightness.

This MagSafe compatible monitor attaches to compatible products instantly using a robust 2500 g magnetic mount ring. It also includes a pan & tilt head with a cold shoe to attach it to a camera or smartphone cage setup for even more versatility.

SmallRig 4850B Specs

General
Compatibility
Univeral
Display
Panel Type
LCD
Size
3.97"
Native Resolution
480 x 800
Touchscreen
No
Maximum Brightness
500 nits / cd/m2
Inputs/Outputs
USB I/O
1 x USB-C (Power Only) Female Input
Media/Memory Card Slot
Yes
Internal Storage
Yes
Wireless
Wireless
Wi-Fi
Power
Power Source
Battery (Built-In)
Battery Type
Built-In Rechargeable Lithium-Ion
DC Input Power
5 VDC at 1 A
Physical
Mounting
Back: 1x MagSafe Magnetic Mount
Side: 1x 1/4"-20 Female
Color
Gray
Material of Construction
Aluminum
Certifications
CE, FCC, RoHS
Storage Conditions
-4 to 118°F / -20 to 48°C
Dimensions
4.2 x 2.7 x 0.6" / 106 x 69 x 14 mm
Weight
4.6 oz / 129 g
Packaging Info
Package Weight
0.47 lb
Box Dimensions (LxWxH)
5.3 x 4.9 x 1.4"

SmallRig 4850B Reviews

Cool gadget for cell phone photography & video

By Charles
Rated 4 out of 5
Date: 2026-03-02

This is a cool little gadget for your mobile phone. Very useful for cropping and aligning photos and videos while using your main cameras, not the selfie front camera. It is great if you are on a tripod and shooting down at something because it doesn't have to be attached to your phone to see what your main screen is seeing. Negatives: it isn't a touch screen so the included bluetooth trigger is good. Also, it totally hogs your wireless connection on your phone. You can still use your cellular connection though. For my book, well made and a great price for what it does.

Beware! - Multiple issues.

By Nicholas
Rated 1 out of 5
Date: 2025-12-12

You may expect to simply connect this screen via Airplay to your iphone so you can see yourself while you use the better rear iPhone camera, but you would be wrong. Everything is fine until you press record in your camera app. No matter if its HD, 4K, 23.98, or 29.97 there is massive lag that only gets worse the longer you record. The only time the display shows close to realtime is when you are NOT recording. Others online have suggested using the Black Magic Camera App but that caused massive audio drift issues in the final recording file because of Airplay. This item nearly ruined a shoot and for those reasons I will not be using it any longer. Avoid like the Plague.

See any errors on this page?

Will this connect to a Sony camera (e.g. A9iii) ...

Will this connect to a Sony camera (e.g. A9iii) via wifi?
Asked by: Orville
The SmallRig Wireless Video Phone Monitor (BH # SMWVPMV2) is compatible with smartphones for both iOS and Android operating systems and supports all 4K format recording with the Blackmagic Camera app. It will not connect to the SONY a9III or other cameras.
Answered by: Mark S
Date published: 2025-11-12

Is it compatible with Iphone 17 pro/pro max ? No ...

Is it compatible with Iphone 17 pro/pro max ? No other brands that I tried are compatible with the new iphone.
Asked by: Catalin
The SmallRig Wireless Video Phone Monitor, B&H # SMWVPMV2, is compatible with the iPhone 17 Pro and Pro Max.
Answered by: Miguel M
Date published: 2025-10-23

Can this be used with a teleprompter iOS app ...

Can this be used with a teleprompter iOS app showing on the monitor?
Asked by: David
The SmallRig Wireless Video Phone Monitor, B&H # SMWVPMV2, will essentially mirror your iPhone; as long as you have the teleprompter app open on your iOS device, it will be displayed on the monitor. Keep in mind that there is a noticeable delay, and this could be a problem with time-sensitive applications such as using it as a teleprompter—it is primarily designed to help with framing when shooting photos or videos.
Answered by: Miguel M
Date published: 2025-09-14

The specs say HD Synchronization up to 32.8 ft. ...

The specs say HD Synchronization up to 32.8 ft. What about UHD, does that differ? Is there any lag. Thank you
Asked by: Jase
The SmallRig Wireless Video Phone Monitor will support video transmission over the same distance no matter the format being shot in by the phone. It is however important to note that when shooting in 4K or higher resolutions using the iPhone camera, shooting in frame rates above 24 fps may result in some lag in transmission. When shooting in 4K when using the Blackmagic Camera App, there should be no noticeable additional transmission lag between frame rates.
Answered by: Elliot A
Date published: 2025-11-24
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