Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A3 Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A2 Pro Air | Specification | Bitdeer SealMiner A3 Air |
|---|---|---|
| 255.0 TH/s | Taux de hachage | 260.0 TH/s |
| 3,790 W | Consommation électrique | 3,640 W |
| 14.9 J/TH | Efficiency | 14.0 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 15.5 kg | Weight | 15.5 kg |
| 12,932 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 Pro Air
Bitdeer SealMiner A3 Air
Based on BTC price of $78,183 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitdeer SealMiner A3 Air, which leads on 4 of 4 weighted factors (efficacité, hashrate, consommation électrique, rapport qualité-prix). Where it pulls away hardest is 6% better efficacité (14.9 vs 14.0 J/TH). The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitdeer SealMiner A2 Pro Air and Bitdeer SealMiner A3 Air sit on each measurable spec:
- Bitdeer SealMiner A3 Air 2% more hashrate (255 vs 260 TH/s)
- Bitdeer SealMiner A3 Air 4% better power draw (3,790 vs 3,640 W)
- Bitdeer SealMiner A3 Air 6% better efficacité (14.9 vs 14.0 J/TH)
- Bitdeer SealMiner A2 Pro Air 4% more heat output (12,932 vs 12,420 BTU/hr)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitdeer SealMiner A2 Pro Air | Metric | Bitdeer SealMiner A3 Air |
|---|---|---|
| $4,000 | Upfront cost (MSRP) | $3,900 |
| $0.08 | Daily net profit | $0.62 |
| -$3,971 | Net after 1 year | -$3,674 |
| -$3,943 | Net after 2 years | -$3,449 |
| -$3,914 | Net after 3 years | -$3,223 |
| Takes ~139.6 years to pay back at current rates | Payback period | Takes ~17.3 years to pay back at current rates |
At the default rate, the Bitdeer SealMiner A3 Air reaches break-even first — but plug in your own electricity cost above, since payback shifts sharply with it.
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$0.54/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
Bitdeer SealMiner A2 Pro Air vs Bitdeer SealMiner A3 Air: which one earns more per day?
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 $0.08/day for the Bitdeer SealMiner A2 Pro Air. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitdeer SealMiner A2 Pro Air 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 Pro Air 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 Pro Air and Bitdeer SealMiner A3 Air on J/TH?
The Bitdeer SealMiner A2 Pro Air runs at 14.9 J/TH while the Bitdeer SealMiner A3 Air runs at 14.0 J/TH — a difference of 0.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 6% better efficacité (14.9 vs 14.0 J/TH).