SealMiner A2 Hydro (446MH/s) vs Whatsminer M21 (31MH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
SealMiner A2 Hydro (446MH/s)
Option 2
Whatsminer M21 (31MH/s)
Whatsminer M21 (31MH/s) leads this comparison
Whatsminer M21 (31MH/s) comes out ahead on more buyer-facing signals here. SealMiner A2 Hydro (446MH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.
Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | SealMiner A2 Hydro (446MH/s) | Whatsminer M21 (31MH/s) | Advantage |
|---|---|---|---|
| Brand | N/A | N/A | Contextual |
| Model | N/A | N/A | Contextual |
| Hashrate | 446 MH/s Best | 31 MH/s | SealMiner A2 Hydro (446MH/s) |
| Power Consumption | 0W | 0W | Tie |
| Efficiency | N/A | N/A | Contextual |
| Daily energy use | 0.0 kWh | 0.0 kWh | Tie |
| Net Daily Profit (Est.) | $0.00 | $1.11 Best | Whatsminer M21 (31MH/s) |
| Monthly Profit (Est.) | $0.00 | $33.15 Best | Whatsminer M21 (31MH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | HYDRO | AIR | Contextual |
| Dimensions | N/A | 200 x 440 x 300 mm | Contextual |
| Weight | N/A | 7150 g | Contextual |
Performance
SealMiner A2 Hydro (446MH/s) has the hashrate edge for raw output potential.
Efficiency
Efficiency data is not available for this comparison.
Buying decision
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
Frequently asked questions
Which is more powerful: SealMiner A2 Hydro (446MH/s) or Whatsminer M21 (31MH/s)?
SealMiner A2 Hydro (446MH/s) has a higher hashrate of 446 MH/s compared to Whatsminer M21 (31MH/s)'s 31 MH/s.
Is SealMiner A2 Hydro (446MH/s) more efficient than Whatsminer M21 (31MH/s)?
Efficiency data is not available for this comparison.
Which miner has the better estimated ROI?
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
Every Day You Wait is Revenue You Lose
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