Xiaomi's “Ultra” camera phone has a grip accessory, screw-on lens filters

The grip has a shutter button, zoom controls, and standard 67 mm lens-filter support.

Filter Compatibility - The CP and Mist filters are compatible with the Ultra-Wide (0.5x), Wide (1x), and Telephoto (3x) cameras, while the Morphic,

PolarPro - LiteChaser - iPhone 13 - PRO Max - Filmmaking Kit - Case - Filters - Grip - MagSafe Compatible - Mobile Phone Photography/Videography

JJC Magnetic Phone Camera Grip Handle with Wireless Shutter Remote, Magsafe Camera Handle Bluetooth Bracket for iPhone Android Smartphone with 1/4” Tripod Screw for Video Photo Shooting (Black) : Cell Phones

Insta360 GO 3 Action Camera (64GB) - 14PC Accessory Bundle

10 in 1 Phone Lens Kits for iPhone and Most Phone - Apexel

【One-Hand Phone Grip Design】Comfortable and ergonomic phone grip design increases the stability and grips your phone like a camera, reduces shaking

JJC Magnetic Phone Camera Grip Handle with Wireless Shutter Remote, Magsafe Camera Handle Bluetooth Bracket for iPhone Android Smartphone with 1/4”

Kase Cell Phone Master Macro Lens With M17 17mm Screw Mount And U-shape Clip For Iphone Samsung Xiaomi Oneplus - Camera Lenses - AliExpress

Moment O-Series Universal Lens Mount (107-010) - Moment

Beastgrip Lens Adapter & Rig System for Smartphones

SmallRig Smartphone Video Rig Kit for iPhone 14 Pro with Wireless Control Side Handle, Single Handheld Phone Cage Kit for Filmmaking/Videography/Live Streaming/Vlog-4100 : Electronics

iPhone 12 Lens Kit - Telephoto, Macro, Wide & Fisheye - SANDMARC

Andoer Smartphone Vlogging Hand Grip Mobile Phone Video Recording Holder Handle Stabilizer Cellphone Clamp 40mm-85mm Width with Microphone and Mini LED Light