Bitdeer SealMiner A2 vs Bitdeer SealMiner A3 Pro Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A2 | Specification | Bitdeer SealMiner A3 Pro Air |
|---|---|---|
| 226.0 TH/s | Hashrate | 290.0 TH/s |
| 3,730 W | Power Consumption | 3,625 W |
| 16.5 J/TH | Efficiency | 12.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.5 kg | Weight | 15.5 kg |
| 12,727 BTU/hr | BTU Output | 12,369 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitdeer | Manufacturer | Bitdeer |
Profitability Comparison
Bitdeer SealMiner A2
Bitdeer SealMiner A3 Pro Air
Based on BTC price of $78,086 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitdeer SealMiner A3 Pro Air wins on 3 of 4 factors (efficiency, hashrate, power consumption). Its biggest concrete edge: 24% better efficiency (16.5 vs 12.5 J/TH). That said, the Bitdeer SealMiner A2 isn't beaten everywhere — it still wins price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitdeer SealMiner A2 and Bitdeer SealMiner A3 Pro Air diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A3 Pro Air 28% more hashrate (226 vs 290 TH/s)
- Bitdeer SealMiner A3 Pro Air 3% better power draw (3,730 vs 3,625 W)
- Bitdeer SealMiner A3 Pro Air 24% better efficiency (16.5 vs 12.5 J/TH)
- Bitdeer SealMiner A2 3% more heat output (12,727 vs 12,369 BTU/hr)
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.
| Bitdeer SealMiner A2 | Metric | Bitdeer SealMiner A3 Pro Air |
|---|---|---|
| $2,760 | Upfront cost (MSRP) | $4,895 |
| -$0.83 | Daily net profit | $1.72 |
| -$3,063 | Net after 1 year | -$4,267 |
| -$3,367 | Net after 2 years | -$3,639 |
| -$3,670 | Net after 3 years | -$3,011 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~7.8 years to pay back at current rates |
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
Bitdeer SealMiner A3 Pro Air$2.55/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitdeer SealMiner A3 Pro Air12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitdeer SealMiner A2 or the Bitdeer SealMiner A3 Pro Air?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Air is more profitable at $1.72/day compared to $-0.83/day for the Bitdeer SealMiner A2. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitdeer SealMiner A2 vs Bitdeer SealMiner A3 Pro Air: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitdeer SealMiner A2 or the Bitdeer SealMiner A3 Pro Air?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
Bitdeer SealMiner A2 vs Bitdeer SealMiner A3 Pro Air: how much does the efficiency gap matter?
The Bitdeer SealMiner A2 runs at 16.5 J/TH while the Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH — a difference of 4.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 24% better efficiency (16.5 vs 12.5 J/TH).