Antminer S19 vs Bitdeer SealMiner A2 Pro Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19 | Specification | Bitdeer SealMiner A2 Pro Air |
|---|---|---|
| 95.0 TH/s | Hashrate | 255.0 TH/s |
| 3,250 W | Power Consumption | 3,790 W |
| 34.2 J/TH | Efficiency | 14.9 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.4 kg | Weight | 15.5 kg |
| 11,089 BTU/hr | BTU Output | 12,932 BTU/hr |
| 84/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S19
Bitdeer SealMiner A2 Pro Air
Based on BTC price of $77,902 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitdeer SealMiner A2 Pro Air edges it: 3 of 5 factors go its way (efficiency, hashrate, price-performance). The standout gap is 168% more hashrate (95.0 vs 255.0 TH/s) in the Bitdeer SealMiner A2 Pro Air's favour. The Antminer S19 holds the edge in power consumption and home mining score. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Antminer S19 and Bitdeer SealMiner A2 Pro Air diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A2 Pro Air 168% more hashrate (95.0 vs 255.0 TH/s)
- Antminer S19 14% better power draw (3,250 vs 3,790 W)
- Bitdeer SealMiner A2 Pro Air 57% better efficiency (34.2 vs 14.9 J/TH)
- Antminer S19 7% better weight (14.4 vs 15.5 kg)
- Bitdeer SealMiner A2 Pro Air 17% more heat output (11,089 vs 12,932 BTU/hr)
- Antminer S19 180% more home mining score (84.0 vs 30.0)
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.
| Antminer S19 | Metric | Bitdeer SealMiner A2 Pro Air |
|---|---|---|
| $2,000 | Upfront cost (MSRP) | $4,000 |
| -$4.39 | Daily net profit | $0.05 |
| -$3,604 | Net after 1 year | -$3,983 |
| -$5,208 | Net after 2 years | -$3,967 |
| -$6,812 | Net after 3 years | -$3,950 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~240.6 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 A2 Pro Air$4.44/day higher profit at current rates.
Best for Home Mining
Antminer S19Score: 84/100. 75 dB noise level.
Best for Efficiency
Bitdeer SealMiner A2 Pro Air14.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S19 or the Bitdeer SealMiner A2 Pro Air?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 Pro Air is more profitable at $0.05/day compared to $-4.39/day for the Antminer S19. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S19 or Bitdeer SealMiner A2 Pro Air?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S19 or Bitdeer SealMiner A2 Pro Air?
The Antminer S19 scores 84/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A2 Pro Air). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S19 vs Bitdeer SealMiner A2 Pro Air: how much does the efficiency gap matter?
The Antminer S19 runs at 34.2 J/TH while the Bitdeer SealMiner A2 Pro Air runs at 14.9 J/TH — a difference of 19.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 57% better efficiency (34.2 vs 14.9 J/TH).
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