Bitmain Antminer S21 Immersion (227Th) vs Whatsminer M56S+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (227Th) | Specification | Whatsminer M56S+ |
|---|---|---|
| 227.0 TH/s | Hashrate | 216.0 TH/s |
| 3,623 W | Power Consumption | 5,060 W |
| 16.0 J/TH | Efficiency | 23.4 J/TH |
| 75 dB | Noise Level | 50 dB |
| 17.2 kg | Weight | 13.0 kg |
| 12,362 BTU/hr | BTU Output | 17,265 BTU/hr |
| 30/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21 Immersion (227Th)
Whatsminer M56S+
Based on BTC price of $69,266 and current network difficulty as of Mar 26, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 Immersion (227Th) wins on 4 of 6 factors (efficiency, hashrate, power consumption, price-performance). The Whatsminer M56S+ holds the edge in home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M56S+Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Immersion (227Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 Immersion (227Th) or Whatsminer M56S+ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Immersion (227Th) is more profitable at $-1.88/day compared to $-5.66/day for the Whatsminer M56S+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 Immersion (227Th) or Whatsminer M56S+?
The Whatsminer M56S+ is quieter at 50 dB compared to the Bitmain Antminer S21 Immersion (227Th) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 Immersion (227Th) or Whatsminer M56S+?
The Whatsminer M56S+ scores 44/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21 Immersion (227Th)). 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 Bitmain Antminer S21 Immersion (227Th) and Whatsminer M56S+?
The Bitmain Antminer S21 Immersion (227Th) runs at 16.0 J/TH while the Whatsminer M56S+ runs at 23.4 J/TH — a difference of 7.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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