# Device Info: CPU & Battery > Battery, CPU, RAM info & hardware tests — screen, sensors, storage, network Canonical page: [https://chrome-stats.com/d/com.techi4u.device\_info\_master](https://chrome-stats.com/d/com.techi4u.device_info_master) ## Overview - **ID:** `com.techi4u.device_info_master` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Techi4u - **Category:** TOOLS - **Downloads:** 309 - **Version:** 1.0.5 - **Last updated:** 2026-07-29 - **First published:** 2023-07-27 - **Publisher country:** PK - **Size:** 20 MB - **Data as of:** 2026-09-12 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.techi4u.device_info_master) - **Website:** [https://techi4u.business.site/](https://techi4u.business.site/) - **Privacy policy:** [https://www.privacypolicygenerator.info/live.php?token=uQKbQLG1kPKNcrVCoE80QeFBuAiex4ny](https://www.privacypolicygenerator.info/live.php?token=uQKbQLG1kPKNcrVCoE80QeFBuAiex4ny) ## Description Device Info: CPU & Battery is your all-in-one device info and hardware testing app. Check your phone's battery health, CPU, RAM, storage and run complete hardware tests — all in one place, fast and free.

🔋 HARDWARE TESTS
Test every part of your phone before you buy, sell, or troubleshoot it:
- Battery Health — level, charging state, temperature & voltage
- Sensor Test — accelerometer, gyroscope, proximity & compass
- Touch Screen Test — grid & multi-touch dead zone detection
- Vibration Test — haptics & motor check
- Speaker Test — tone playback check
- Camera Test — front & back camera preview
- Flashlight Test — LED torch on/off
- Fingerprint Sensor — biometric availability & enrollment check

📱 DISPLAY & SCREEN
Get full display info and catch screen issues early:
- Display Info — resolution, DPI, refresh rate & color depth
- Dead Pixel Test — full-color screens
- Notch / Cutout Detector — cutout dimensions & shape
- Multi-Window Support — split-screen/freeform/PiP check

⚡ PERFORMANCE
Monitor and benchmark your device's real-time performance:
- Storage Breakdown — used vs free space
- RAM & CPU Monitor — live memory/core usage
- Benchmark Score — math/sort/list performance test
- Network Hardware Check — WiFi, Bluetooth, NFC & GPS

🔒 SECURITY & PRIVACY
Know what's running and what's shared on your device:
- Device Fingerprint — Android ID, build fingerprint & uniqueness
- Accessibility Settings — enabled services & font scale
- Developer Options — dev options & USB debugging status

📊 SYSTEM INFO
- App List & Sizes — installed apps & storage usage

Whether you're a tech enthusiast, buying a second-hand phone, or just curious about your device's specs, Device Info: CPU & Battery gives you accurate, real-time hardware and system information — no login, no clutter.

Download now and know your device inside out. ## Rankings - #1,550,655 — Overall ## Permissions and access ### Permissions - `android.hardware.sensor.proximity` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.CAMERA` - `android.permission.READ_EXTERNAL_STORAGE` - `android.permission.READ_PHONE_STATE` - `android.permission.RECORD_AUDIO` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.VIBRATE` - `com.techi4u.device_info_master.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Device Info & Hardware Test](https://chrome-stats.com/d/com.multi_software.deviceinfo) — 1,851 users - [Device Info: System & CPU Info](https://chrome-stats.com/d/com.shahid.deviceinfo) — 230 users - [Device Info – Hardware & CPU](https://chrome-stats.com/d/com.soulkitchen.deviceinfo) — 71 users - [Device Info CPU, RAM & Battery](https://chrome-stats.com/d/com.codentricks.deviceinfo) — 702 users - [Device Info: System & CPU Info](https://chrome-stats.com/d/com.vanillastudio.deviceinformation) — 95 users - [Device Info: CPU & System](https://chrome-stats.com/d/com.information.device) — 1,831 users - [Device Info](https://chrome-stats.com/d/com.youngware.deviceinfo) — 1,011 users - [DeviceLab: Device Info Test](https://chrome-stats.com/d/net.deve.devicelab) — 445 users - [Device Info: System & CPU Info](https://chrome-stats.com/d/com.ytheekshana.deviceinfo) — 13,602,834 users, 4.77 / 5 - [Device Info: System & CPU Info](https://chrome-stats.com/d/com.deviceinfo.systeminfo.batteryinfo.storageinfo) — 2,010 users - [Device Info Pro: CPU & Battery](https://chrome-stats.com/d/com.cpumaster.batterymonitor.cpumonitor) — 82,844 users, 4.50 / 5 - [Device Info:Hardware Tester](https://chrome-stats.com/d/com.hardwaretest.deviceinfo) — 87 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.techi4u.device_info_master)