YI 4K Action Camera II Specs and Sourcing Guide

The Xiaomi YI 4K Action Camera II (YI 2) remains a significant milestone in the action camera market, featuring a Sony IMX377 sensor and Ambarella A9SE75 chip that enabled 4K/30fps recording with exceptional battery life of up to 120 minutes Geekbuying Funtechtalk. While it set a high bar for cost-effective performance, the market has evolved significantly heading into 2026.

The global action camera market is projected to reach approximately $7.93 billion by 2026 Mordorintelligence. Modern trends are now defined by the shift toward 8K resolution, AI-driven auto-editing, and specialized professional models for cinema and industrial use Findingtheuniverse Mordorintelligence. Current B2B sourcing data shows that while the original YI 2 is now a legacy model, its architecture lives on in modern "Pro" series cameras available at wholesale prices ranging from $57 to $118 Alibaba Alibaba.

The comprehensive report below covers full technical specifications, detailed 2026 market projections, and a competitive analysis of current B2B sourcing options.

4k Action Camera Ii

Overview

4k Action Camera With Ambarella A9se75 Sony Imx377 Specs

Full Market Report

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Sources & References