Antminer S19 Pro vs Bitdeer SealMiner A3 Pro Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19 Pro | Specification | Bitdeer SealMiner A3 Pro Air |
|---|---|---|
| 110.0 TH/s | Hashrate | 290.0 TH/s |
| 3,250 W | Power Consumption | 3,625 W |
| 29.6 J/TH | Efficiency | 12.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.4 kg | Weight | 15.5 kg |
| 11,089 BTU/hr | BTU Output | 12,369 BTU/hr |
| 84/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S19 Pro
Bitdeer SealMiner A3 Pro Air
Based on BTC price of $79,032 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitdeer SealMiner A3 Pro Air, which leads on 3 of 5 weighted factors (efficiency, hashrate, price-performance). Where it pulls away hardest is 164% more hashrate (110 vs 290 TH/s). The Antminer S19 Pro claws back ground on power consumption and home mining score. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Antminer S19 Pro 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 164% more hashrate (110 vs 290 TH/s)
- Antminer S19 Pro 10% better power draw (3,250 vs 3,625 W)
- Bitdeer SealMiner A3 Pro Air 58% better efficiency (29.6 vs 12.5 J/TH)
- Antminer S19 Pro 7% better weight (14.4 vs 15.5 kg)
- Bitdeer SealMiner A3 Pro Air 12% more heat output (11,089 vs 12,369 BTU/hr)
- Antminer S19 Pro 180% more home mining score (84.0 vs 30.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Antminer S19 Pro | Metric | Bitdeer SealMiner A3 Pro Air |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $4,895 |
| -$3.80 | Daily net profit | $1.85 |
| -$3,887 | Net after 1 year | -$4,221 |
| -$5,274 | Net after 2 years | -$3,547 |
| -$6,660 | Net after 3 years | -$2,872 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~7.3 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$5.65/day higher profit at current rates.
Best for Home Mining
Antminer S19 ProScore: 84/100. 75 dB noise level.
Best for Efficiency
Bitdeer SealMiner A3 Pro Air12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S19 Pro vs Bitdeer SealMiner A3 Pro Air: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Air is more profitable at $1.85/day compared to $-3.80/day for the Antminer S19 Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S19 Pro or the Bitdeer SealMiner A3 Pro Air better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S19 Pro or Bitdeer SealMiner A3 Pro Air?
The Antminer S19 Pro scores 84/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A3 Pro Air). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Antminer S19 Pro and Bitdeer SealMiner A3 Pro Air on J/TH?
The Antminer S19 Pro runs at 29.6 J/TH while the Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH — a difference of 17.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 58% better efficiency (29.6 vs 12.5 J/TH).
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