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eSSESSMENT · Coherence help

System requirements

The phones and tablets Coherence supports, and what your camera needs for a reliable reading.

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Device requirements

To complete camera-based activities in Coherence, use a phone or tablet with a front-facing camera and a supported operating system:

PlatformRequirement
iPhone and iPadiOS or iPadOS 17 or later
AndroidAndroid 9 or later. See the supported devices.
CameraA front-facing camera

Reliable measurements also depend on camera performance. Your device should keep about 25 frames per second or higher during a scan, and 30 fps is recommended. A supported operating system alone doesn’t ensure a reliable scan.

Before you begin

Choose a well-lit space, keep your face clearly visible, and follow the on-screen guidance. For breathing measurements, rest your phone on a stable surface with your face and chest in view. For more tips, see Getting a good measurement.

Search guides for the Console, Coherence and Liveline.