S21 Hyd vs SealMiner A2 Pro Air
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5360 W | 3790 W | |
| Release | 2024-02 | 2025-03 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $1.07 | $1.37 | |
| Score | 67/100 | 69/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S21 Hyd | SealMiner A2 Pro Air | |
|---|---|---|---|
| SHA-256 | 335 TH/s5360 W · 62.5 GH/s/W | 255 TH/s3790 W · 67.28 GH/s/W |