Bitmain Antminer S19 Pro Hyd (177Th) vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19 Pro Hyd (177Th) | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 177.0 TH/s | Hashrate | 31.0 TH/s |
| 5,221 W | Power Consumption | 1,860 W |
| 29.5 J/TH | Efficiency | 60.0 J/TH |
| — | Noise Level | — |
| 1,520.0 kg | Weight | 7,150.0 kg |
| 17,814 BTU/hr | BTU Output | 6,346 BTU/hr |
| 16/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S19 Pro Hyd (177Th)
MicroBT Whatsminer M21
Based on BTC price of $79,114 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S19 Pro Hyd (177Th) edges it: 2 of 4 factors go its way (efficiency, hashrate). Where it pulls away hardest is 471% more hashrate (177.0 vs 31.0 TH/s). The MicroBT Whatsminer M21 claws back ground on power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S19 Pro Hyd (177Th) and MicroBT Whatsminer M21 sit on each measurable spec:
- Bitmain Antminer S19 Pro Hyd (177Th) 471% more hashrate (177.0 vs 31.0 TH/s)
- MicroBT Whatsminer M21 64% better power draw (5,221 vs 1,860 W)
- Bitmain Antminer S19 Pro Hyd (177Th) 51% better efficiency (29.5 vs 60.0 J/TH)
- Bitmain Antminer S19 Pro Hyd (177Th) 79% better weight (1,520 vs 7,150 kg)
- Bitmain Antminer S19 Pro Hyd (177Th) 181% more heat output (17,814 vs 6,346 BTU/hr)
- MicroBT Whatsminer M21 75% more home mining score (16.0 vs 28.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer S19 Pro Hyd (177Th) | Metric | MicroBT Whatsminer M21 |
|---|---|---|
| $986 | Upfront cost (MSRP) | — |
| -$6.09 | Daily net profit | -$3.34 |
| -$3,208 | Net after 1 year | -$1,217 |
| -$5,429 | Net after 2 years | -$2,435 |
| -$7,651 | Net after 3 years | -$3,652 |
| 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
Bitmain Antminer S19 Pro Hyd (177Th)29.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S19 Pro Hyd (177Th) 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 $-3.34/day compared to $-6.09/day for the Bitmain Antminer S19 Pro Hyd (177Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S19 Pro Hyd (177Th) 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 Bitmain Antminer S19 Pro Hyd (177Th) or MicroBT Whatsminer M21?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S19 Pro Hyd (177Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S19 Pro Hyd (177Th) vs MicroBT Whatsminer M21: how much does the efficiency gap matter?
The Bitmain Antminer S19 Pro Hyd (177Th) runs at 29.5 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 30.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 51% better efficiency (29.5 vs 60.0 J/TH).
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