MicroBT Whatsminer M10S vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M10S | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 55.0 TH/s | Hashrate | 31.0 TH/s |
| 3,500 W | Power Consumption | 1,860 W |
| 63.6 J/TH | Efficiency | 60.0 J/TH |
| — | Noise Level | — |
| 10,700.0 kg | Weight | 7,150.0 kg |
| 11,942 BTU/hr | BTU Output | 6,346 BTU/hr |
| 22/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M10S
MicroBT Whatsminer M21
Based on BTC price of $78,208 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the MicroBT Whatsminer M21, which leads on 3 of 4 weighted factors (efficiency, power consumption, home mining score). The standout gap is 47% better power draw (3,500 vs 1,860 W) in the MicroBT Whatsminer M21's favour. The MicroBT Whatsminer M10S holds the edge in hashrate. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the MicroBT Whatsminer M10S and MicroBT Whatsminer M21 sit on each measurable spec:
- MicroBT Whatsminer M10S 77% more hashrate (55.0 vs 31.0 TH/s)
- MicroBT Whatsminer M21 47% better power draw (3,500 vs 1,860 W)
- MicroBT Whatsminer M21 6% better efficiency (63.6 vs 60.0 J/TH)
- MicroBT Whatsminer M21 33% better weight (10,700 vs 7,150 kg)
- MicroBT Whatsminer M10S 88% more heat output (11,942 vs 6,346 BTU/hr)
- MicroBT Whatsminer M21 27% more home mining score (22.0 vs 28.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| MicroBT Whatsminer M10S | Metric | MicroBT Whatsminer M21 |
|---|---|---|
| $3,800 | Upfront cost (MSRP) | — |
| -$6.42 | Daily net profit | -$3.35 |
| -$6,144 | Net after 1 year | -$1,222 |
| -$8,487 | Net after 2 years | -$2,444 |
| -$10,831 | Net after 3 years | -$3,666 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
MicroBT Whatsminer M21Score: 28/100. 0 dB noise level.
Best for Efficiency
MicroBT Whatsminer M2160.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the MicroBT Whatsminer M10S or MicroBT Whatsminer M21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.35/day compared to $-6.42/day for the MicroBT Whatsminer M10S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
MicroBT Whatsminer M10S vs MicroBT Whatsminer M21: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the MicroBT Whatsminer M10S or MicroBT Whatsminer M21?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M10S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the MicroBT Whatsminer M10S and MicroBT Whatsminer M21 on J/TH?
The MicroBT Whatsminer M10S runs at 63.6 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 3.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 6% better efficiency (63.6 vs 60.0 J/TH).