Antminer S21 vs WhatsMiner M60S
Both machines are current-generation SHA-256 air-cooled miners aimed at the same buyer: someone deploying one to a few units into a hosted rack. The decision comes down to hashrate per dollar versus efficiency per terahash.
The Antminer S21 wins on raw output and efficiency (200 TH/s at 17.5 J/TH); the WhatsMiner M60S costs $700 less up front and runs slightly cheaper per day, so it pays back faster at higher electricity rates.
Specification comparison
| Spec | Antminer S21 | WhatsMiner M60S |
|---|---|---|
| Hashrate | 200 TH/s | 186 TH/s |
| Power draw | 3500 W | 3444 W |
| Efficiency | 17.5 J/TH | 18.5 J/TH |
| Noise | 75 dB | 78 dB |
| Algorithm | SHA-256 | SHA-256 |
| Price | $5,490 | $4,790 |
Daily profit and payback
Estimates assume $0.0456 of gross mining revenue per TH/s per day and continuous operation. Network difficulty, Bitcoin price and uptime change these figures — returns are estimated, not fixed or risk-free.
| Electricity scenario | Antminer S21 net / day | Antminer S21 payback | WhatsMiner M60S net / day | WhatsMiner M60S payback |
|---|---|---|---|---|
| Hosted (ProElectricRig) $0.055/kWh | $4.50 | 1220 days | $3.94 | 1217 days |
| Grid-balanced $0.070/kWh | $3.24 | 1694 days | $2.70 | 1777 days |
| Commercial $0.095/kWh | $1.14 | 4816 days | $0.63 | 7612 days |
You are optimising for efficiency and long-term margin, hosting at a low power rate, or want the most hashrate per rack slot.
You want the lowest entry price per machine, a proven MicroBT build for high-ambient sites, or the shortest payback at grid-rate power.