MicroBT Whatsminer M21S vs Whatsminer M50
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21S | Specification | Whatsminer M50 |
|---|---|---|
| 56.0 TH/s | Hashrate | 114.0 TH/s |
| 3,360 W | Power Consumption | 3,306 W |
| 60.0 J/TH | Efficiency | 29.0 J/TH |
| — | Noise Level | 75 dB |
| 12,500.0 kg | Weight | 12.5 kg |
| 11,464 BTU/hr | BTU Output | 11,280 BTU/hr |
| 22/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21S
Whatsminer M50
Based on BTC price of $79,183 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Whatsminer M50, which leads on 5 of 6 weighted factors (efficiency, hashrate, power consumption, home mining score, noise level). The standout gap is 52% better efficiency (60.0 vs 29.0 J/TH) in the Whatsminer M50's favour. The MicroBT Whatsminer M21S claws back ground on price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The MicroBT Whatsminer M21S and Whatsminer M50 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Whatsminer M50 104% more hashrate (56.0 vs 114.0 TH/s)
- Whatsminer M50 2% better power draw (3,360 vs 3,306 W)
- Whatsminer M50 52% better efficiency (60.0 vs 29.0 J/TH)
- Whatsminer M50 100% better weight (12,500.0 vs 12.5 kg)
- MicroBT Whatsminer M21S 2% more heat output (11,464 vs 11,280 BTU/hr)
- Whatsminer M50 64% more home mining score (22.0 vs 36.0)
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 M21S | Metric | Whatsminer M50 |
|---|---|---|
| $650 | Upfront cost (MSRP) | $2,600 |
| -$5.96 | Daily net profit | -$3.65 |
| -$2,825 | Net after 1 year | -$3,933 |
| -$5,001 | Net after 2 years | -$5,265 |
| -$7,176 | Net after 3 years | -$6,598 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
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
Whatsminer M50Score: 36/100. 75 dB noise level.
Best for Efficiency
Whatsminer M5029.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M21S vs Whatsminer M50: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Whatsminer M50 is more profitable at $-3.65/day compared to $-5.96/day for the MicroBT Whatsminer M21S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the MicroBT Whatsminer M21S or Whatsminer M50?
The Whatsminer M50 is quieter at 75 dB compared to the MicroBT Whatsminer M21S at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the MicroBT Whatsminer M21S or the Whatsminer M50?
The Whatsminer M50 scores 36/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M21S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between MicroBT Whatsminer M21S and Whatsminer M50?
The MicroBT Whatsminer M21S runs at 60.0 J/TH while the Whatsminer M50 runs at 29.0 J/TH — a difference of 31.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 52% better efficiency (60.0 vs 29.0 J/TH).