Antminer S21 vs Whatsminer M60S++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | Whatsminer M60S++ |
|---|---|---|
| 200.0 TH/s | Hashrate | 220.0 TH/s |
| 3,500 W | Power Consumption | 3,960 W |
| 17.5 J/TH | Efficiency | 18.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.6 kg | Weight | 14.0 kg |
| 11,942 BTU/hr | BTU Output | 13,512 BTU/hr |
| 36/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S21
Whatsminer M60S++
Based on BTC price of $78,200 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Flagship versus flagship: Bitmain's standard S21 against MicroBT's fully optimized M60S++. The best of both brands at their respective price tiers.
The M60S++ is MicroBT's peak performer with cherry-picked chips. It trades blows with the S21 on efficiency. The decision comes down to availability, price, and your preferred ecosystem for parts and support.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer S21 and Whatsminer M60S++ sit on each measurable spec:
- Whatsminer M60S++ 10% more hashrate (200 vs 220 TH/s)
- Antminer S21 12% better power draw (3,500 vs 3,960 W)
- Antminer S21 3% better efficiency (17.5 vs 18.0 J/TH)
- Whatsminer M60S++ 4% better weight (14.6 vs 14.0 kg)
- Whatsminer M60S++ 13% more heat output (11,942 vs 13,512 BTU/hr)
- Antminer S21 20% more home mining score (36.0 vs 30.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer S21 | Metric | Whatsminer M60S++ |
|---|---|---|
| $5,500 | Upfront cost (MSRP) | $7,000 |
| -$1.20 | Daily net profit | -$1.59 |
| -$5,939 | Net after 1 year | -$7,579 |
| -$6,378 | Net after 2 years | -$8,159 |
| -$6,817 | Net after 3 years | -$8,738 |
| 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
Antminer S21Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the M60S++ more efficient than the S21?
They are extremely close. Depending on firmware version and ambient conditions, either could edge out the other. Real-world differences are marginal.
Which has better resale value?
Bitmain's larger market share gives Antminers slightly better liquidity. However, MicroBT's ++ models are well-regarded and hold value among informed buyers.