📶 Capacitor Signal Strength (Android)

A Capacitor Android-only plugin to retrieve cellular signal strength information such as:

• dBm
• Signal level
• Percentage
• 5G / LTE / WCDMA / GSM awareness

Designed with Capacitor 5 → 8 compatibility and correct Android permission handling.

✨ Features

• ✅ Android only (no web / iOS shims)
• ✅ Supports LTE, WCDMA, GSM, CDMA, 5G (NR)
• ✅ Returns:
  • Signal strength in dBm
  • Normalized signal level
  • Percentage
• ✅ Uses Capacitor’s native permission system
• ✅ Compatible with Capacitor 5, 6, 7, 8
• ✅ Safe permission lifecycle (no crashes after prompt)
• ✅ Works with @capacitor/network for connection type

⚠️ Platform Support

| Platform | Supported | |--------|-----------| | Android | ✅ Yes | | iOS | ❌ No | | Web | ❌ No |

📦 Installation

npm install capacitor-signal-strength
npx cap sync android

API Reference

SignalStrengthPlugin

Methods

• checkPermissions(): Promise<PermissionStatus>
• requestPermissions(options): Promise<PermissionStatus>
• getdBm(): Promise<{ dBm: number }>
• getLevel(): Promise<{ level: number }>
• getPercentage(connection: ConnectionType): Promise<{ percentage: number }>

PermissionStatus

{
  phone: 'granted' | 'denied' | 'prompt'
}

Compatibility

• Capacitor: v5+
• Android: API 26 (Android 8.0) and above
• 5G signal metrics are available on Android 11+