When building an Android-based proxy network is critical to ensure reliability, scalability, and performance. Android devices vary drastically in quality, and opting strictly for budget models can lead to constant dropouts and hardware malfunctions. Focus on models engineered for long-term use—vintage premium devices such as the Pixel 3a, S8, or OnePlus 6 still hold up well because they were constructed using premium parts and benefit from active community firmware updates. Skip entry-level devices with underpowered chips and insufficient memory, as they crash when managing concurrent proxy services.

Battery life is another key factor. These systems operate non-stop, so devices featuring high-capacity cells or quick-charge compatibility are highly recommended. Choose phones that permit permanent screen-on mode without overheating—handsets engineered to stay cool under prolonged stress tend to maintain stable temperatures during extended use. Maintain constant charging during proxy tasks, but make sure the charging circuitry is reliable to avoid dangerous cell expansion.

Stable network performance is essential. Choose phones that support multiple LTE bands and have strong modem performance. Units supporting two active SIM cards can be valuable for cycling through carriers to achieve varied IPs. Steer clear of phones with weak antennas or unstable network handoffs. Also, make sure the device has a clean Android version without excessive bloatware. Unlocked units offer the greatest flexibility because they allow you to install custom firmware like LineageOS, which removes unnecessary apps and improves stability.

Control over system-level networking is essential. Admin-level control with custom ROMs and routing applications gives you precise tuning of proxy behavior. Some phones block certain networking features or restrict background data usage, so research user forums to see which models are known to work well with proxy tools. Don’t use locked phones unless unlock codes are guaranteed, as they restrict multi-carrier flexibility and IP rotation.

Plan for growth and simplified upkeep. When scaling to 50+ units, select a standardized model with abundant supply chains. Consistent builds reduce setup time and error rates. Always have replacements for worn-check this out cables and cells, and consider using automated scripts or device management tools to trigger resets upon detection of network failure. The goal is to build a robust, low maintenance system that runs smoothly without constant oversight.