It’s a familiar scenario for many Android developers: a video looks pristine in the camera app, but appears blocky and full of artifacts after being processed for sharing. The diversity of the Android hardware ecosystem presents unique challenges for achieving consistent, high-quality video encoding, where seemingly safe configurations can produce poor results on some devices. This session will dive deep into the most common pitfalls that affect video quality on Android, showing visual examples of their impact and explaining the underlying causes. This talk presents a data-driven approach, offering recommendations for configuring your video encoders that are backed by extensive video quality measurements from our in-house evaluation infrastructure. We’ll also briefly touch on some helpful open-source tools, like Transformer and CodecDB Lite, that can aid in implementation. You’ll leave this talk with a clear strategy and actionable resources to improve video quality in your Android applications. This talk was presented at Demuxed 2025 in London, a conference by and for engineers working in video. Every year we host a conference with lots of great new talks like this – learn more at https://demuxed.com