Device Watch

jrs8205 | System

4 Downloads 16 Views v1.4 3.7 MB 4.1+

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(3.7 MB)

Editor's Overview

Device Watch is a system application developed by jrs8205, packaged as a single Android APK of version 1.4 weighing in at 3.7 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 3.7 MB, so it installs quickly even on modest connections.
This build is signed by "jrs8205" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Device Watch is an Android device monitor with a home-screen widget, per-app usage insights and an interactive screensaver for charging or docked use. It works completely offline: the app has no internet permission, and every number is real data read from Android and kernel sources — when a value is not available with the permissions granted, the app shows a dash instead of a fabricated value.

Features:

* Home-screen widget: battery, memory, CPU, storage, Wi-Fi, mobile network, data usage, uptime, today's screen time and last update time
* Data counters per calendar day or per one-month billing cycle with a configurable start day
* Tabbed dashboard: Overview (live battery ring, usage counters, system meters), Apps (usage insights), Device (hardware, SIM and Wi-Fi details) and Settings
* Screen-time donut of your most-used apps, top data consumers and a last-opened list with per-app uninstall
* Usage counters with a private 62-day daily history kept on the device: screen time, unlocks, filtered notification count, restarts and charging sessions
* On-device notification log with 7-day retention
* Since-charge view: elapsed time, battery drop, average drain and per-app screen time since the battery was last charged full or unplugged
* Interactive screensaver with a large clock, next alarm, charging power in watts, battery-tinted background, optional night dimming and a battery-full notification

All statistics stay on the device. Nothing is uploaded anywhere.

Details

Version	v1.4
Size	3.7 MB
Developer	jrs8205
Category	System
Package	org.jarsi.devicewatch
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	4

Frequently Asked Questions

Is Device Watch free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Device Watch require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Device Watch safe to install?
We link to the exact APK published by jrs8205. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Device Watch?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Device Watch

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded org.jarsi.devicewatch.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Device Watch» by jrs8205 and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.