This page lists the system requirements for running Ava.

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Requirement	Minimum	Recommended
Android Version	5.0 (API 21)	10.0 or higher
CPU Architecture	armeabi-v7a	arm64-v8a
RAM	1GB	2GB or higher
Storage	100MB	200MB

Ava supports Android 5-16, including 32-bit devices. Cheap tablets and old phones work reliably.

Language	Status
English	Full
Chinese	Full
Russian	Full
Portuguese	Full
Vietnamese	Full
German	Full (added in 0.5.2)
French	Full (added in 0.7.3)

System language automatically selects the UI language. Interaction category names and update states are aligned across all supported languages (0.6.7+).

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Requirement	Description
WiFi	Device must be on same LAN as Home Assistant
Port	6053 (ESPHome default port) must be accessible
Stability	Stable WiFi connection recommended

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Component	Description
Home Assistant	Must be installed and running
ESPHome Integration	Must be installed in HA
Voice Assistant	Voice assistant pipeline required (optional)

Component	Purpose	Description
Whisper	Speech-to-Text	Runs locally, privacy protected
Piper	Text-to-Speech	Runs locally, fast
Home Assistant Conversation Agent	Intent Processing	Built-in, no extra config

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Permission	Purpose
RECORD_AUDIO	Microphone recording for voice input
SYSTEM_ALERT_WINDOW	Overlay for screensaver, notifications, floating windows
FOREGROUND_SERVICE	Keep service running
INTERNET	Network access for HA communication
WAKE_LOCK	Keep device awake

Permission	Purpose
CAMERA	Camera features (photos, video, face detection)
BLUETOOTH	Bluetooth presence detection and BLE proxy
ACCESS_FINE_LOCATION	Required for Bluetooth scanning
WRITE_SETTINGS	Adjust screen brightness

Ava works without root, but some features benefit from elevated permissions:

Method	Purpose	Description
Shizuku	Elevated permissions without root	Screen control, display resolution, intent execution
Root	Full system access	Boot scripts, screen control, reboot, background protection
Device Admin	Lock screen without root	Screen lock control

See Permissions for detailed setup guide.

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Device Type	Pros	Cons
Old phones	Cheap, easy to obtain	Small screen
Tablets	Large screen, good display	Needs fixed placement
Touch Screen Speakers	Good audio, high quality microphone	Dedicated device
Car head units	Built-in screen	Limited compatibility
Smart mirrors	Integrated display	Custom setup
Echo Show / Portal	Built-in screen and mic	Limited Android version

1. Screen Size: 7-10 inches is ideal for control panels
2. Microphone: Ensure good microphone quality for voice recognition
3. Speaker: Ensure acceptable speaker quality
4. Power: Keep device plugged in for 24/7 operation

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Ava automatically detects device capabilities and adjusts features based on hardware:

Detection	Purpose
Camera	Auto-detect front/back cameras
Light Sensor	Light sensor screen off feature
Proximity Sensor	Proximity sensor wake feature
Environment Sensors	Temperature/humidity/pressure data
BLE Capabilities	Bluetooth proxy capability tier
Display density	Detect misconfigured panels and offer Interface scale (0.7.3)

Some white-label tablets report a display density that is too high for their actual screen size — every sp/dp renders physically tiny, making the UI unreadable. 0.7.3 adds a manual Interface scale slider (75%–200%, 5% steps) that wraps the whole UI consistently: density, dp dimensions, and every layout breakpoint move together.

• 100% short-circuits to the untouched context — devices that never touch the slider keep today's rendering bit for bit
• When a device's reported configuration is outside the design envelope (common on white-label tablets), Ava offers the slider once as a nudge
• The same page also toggles landscape split view and the main-list bottom pull-handle

Path: Ava Settings → Advanced → Settings style → Interface scale

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Issue	Affected Devices	Solution
WebView rendering issues	Some old devices	Switch to software rendering or GeckoView engine
Inaccurate wake word detection	Devices with poor microphones	Speak closer to device, adjust sensitivity
Overlay permission	Some custom ROMs	Manually grant in settings
Bluetooth proxy limited	Low-end BLE chips	Compatibility mode, root recommended
Background service killed	MIUI, EMUI, ColorOS	Disable battery optimization, see FAQ

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