Bitdeer SealMiner A2 vs Bitdeer SealMiner A3 Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A2 | Specification | Bitdeer SealMiner A3 Air |
|---|---|---|
| 226.0 TH/s | Taux de hachage | 260.0 TH/s |
| 3,730 W | Consommation électrique | 3,640 W |
| 16.5 J/TH | Efficiency | 14.0 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 15.5 kg | Weight | 15.5 kg |
| 12,727 BTU/hr | BTU Output | 12,420 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitdeer | Manufacturer | Bitdeer |
Profitability Comparison
Bitdeer SealMiner A2
Bitdeer SealMiner A3 Air
Based on BTC price of $78,214 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitdeer SealMiner A3 Air edges it: 3 of 4 factors go its way (efficacité, hashrate, consommation électrique). Where it pulls away hardest is 15% better efficacité (16.5 vs 14.0 J/TH). That said, the Bitdeer SealMiner A2 isn't beaten everywhere — it still wins rapport qualité-prix. 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 Bitdeer SealMiner A2 and Bitdeer SealMiner A3 Air sit on each measurable spec:
- Bitdeer SealMiner A3 Air 15% more hashrate (226 vs 260 TH/s)
- Bitdeer SealMiner A3 Air 2% better power draw (3,730 vs 3,640 W)
- Bitdeer SealMiner A3 Air 15% better efficacité (16.5 vs 14.0 J/TH)
- Bitdeer SealMiner A2 2% more heat output (12,727 vs 12,420 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 Air |
|---|---|---|
| $2,760 | Upfront cost (MSRP) | $3,900 |
| -$0.82 | Daily net profit | $0.62 |
| -$3,058 | Net after 1 year | -$3,673 |
| -$3,357 | Net after 2 years | -$3,446 |
| -$3,655 | Net after 3 years | -$3,219 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~17.2 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 Air$1.44/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitdeer SealMiner A3 Air14.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitdeer SealMiner A2 or the Bitdeer SealMiner A3 Air?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Air is more profitable at $0.62/day compared to $-0.82/day for the Bitdeer SealMiner A2. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitdeer SealMiner A2 or the Bitdeer SealMiner A3 Air better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Bitdeer SealMiner A2 vs Bitdeer SealMiner A3 Air: which fits a residential setup better?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
How far apart are the Bitdeer SealMiner A2 and Bitdeer SealMiner A3 Air on J/TH?
The Bitdeer SealMiner A2 runs at 16.5 J/TH while the Bitdeer SealMiner A3 Air runs at 14.0 J/TH — a difference of 2.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 15% better efficacité (16.5 vs 14.0 J/TH).