Is it better to use a phone or a Raspberry Pi for mining Monero?

A Raspberry Pi is usually the better choice for a small Monero mining experiment, but neither it nor a phone is a good choice for earning money. A Pi is easier to cool and leave running without tying up your everyday device, while a phone puts extra wear on a battery you may need all day.

Why a Pi is usually the better experiment

A Raspberry Pi is a small computer on a circuit board. You can give it a dedicated power supply, add a heatsink and fan, and let it run without interrupting your calls or messages.

That makes it more practical for learning how mining works. Mining means using your processor to help secure Monero’s network and compete for rewards.

A Pi is not necessarily faster than a phone. A recent high-end phone may do more calculations per second than some Pi models. The Pi’s main advantage is that it is easier to manage as a dedicated, continuously running device.

If you already own one, experimenting can make sense. Buying a Pi, cooling equipment, and a power supply just for mining is unlikely to be worthwhile.

Why phones are a poor fit for long sessions

Your phone is designed for short bursts of demanding work, not necessarily running its processor hard all day.

During mining, you may notice:

• Faster battery drain and more frequent charging.
• A hot case, especially while charging.
• Slower apps or an unresponsive interface.
• Thermal throttling, where the phone slows its processor to avoid overheating.

Heat and repeated charging can speed up battery aging. Keeping the phone plugged in does not remove that risk: sustained heat still matters.

An old spare phone avoids disrupting your main phone, but its battery may already be worn. Never mine on a device with a swollen or damaged battery. Stop if you see temperature warnings or abnormal heating.

Monero’s memory needs matter on both

Monero uses RandomX, its mining algorithm—the set of calculations miners perform. It favors CPUs, the main processors in computers, but that does not mean every CPU mines efficiently.

RandomX’s fast mode uses a dataset of about 2,080 MB, plus other memory. Its light mode uses a 256 MB cache, but is much slower. Efficient mining also benefits from roughly 2 MB of L3 cache per mining thread. L3 cache is very fast memory inside a processor; a thread is one stream of work.

Many phones and Pi models lack the right combination of memory, cache, and processing power. Having enough RAM alone does not guarantee useful performance.

Browser mining adds another limitation. Mobile browsers may pause work when you switch apps or turn off the screen. Browser restrictions and implementation overhead can also reduce performance on either device compared with compatible native mining software, which runs directly on the operating system.

The bottom line

Choose an existing Raspberry Pi if your goal is a small, supervised learning project. Use suitable cooling, monitor temperature, and measure electricity use at the socket if you want a fair cost comparison.

Choose neither if your goal is dependable profit. Check a live mining calculator using your actual measured speed and electricity price; tiny rewards may take a long time to reach a service’s withdrawal minimum. Be wary of apps or websites promising large phone-mining payouts, especially if they demand payment to unlock withdrawals.