Antminer S21+ vs Canaan Avalon A15Pro-215T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | Canaan Avalon A15Pro-215T |
|---|---|---|
| 216.0 TH/s | Hashrate | 215.0 TH/s |
| 3,564 W | Power Consumption | 3,612 W |
| 16.5 J/TH | Efficiency | 16.8 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.0 kg | Weight | 14.9 kg |
| 12,160 BTU/hr | BTU Output | 12,324 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer S21+
Canaan Avalon A15Pro-215T
Based on BTC price of $76,982 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21+ wins on 3 of 3 factors (efficiency, hashrate, power consumption). Where it pulls away hardest is 2% better efficiency (16.5 vs 16.8 J/TH). 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 Antminer S21+ and Canaan Avalon A15Pro-215T sit on each measurable spec:
- Antminer S21+ 1% better power draw (3,564 vs 3,612 W)
- Antminer S21+ 2% better efficiency (16.5 vs 16.8 J/TH)
- Canaan Avalon A15Pro-215T 1% better weight (15.0 vs 14.9 kg)
- Canaan Avalon A15Pro-215T 1% more heat output (12,160 vs 12,324 BTU/hr)
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 S21+ | Metric | Canaan Avalon A15Pro-215T |
|---|---|---|
| $6,500 | Upfront cost (MSRP) | — |
| -$0.90 | Daily net profit | -$1.05 |
| -$6,829 | Net after 1 year | -$384 |
| -$7,158 | Net after 2 years | -$768 |
| -$7,487 | Net after 3 years | -$1,152 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Antminer S21+16.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S21+ or the Canaan Avalon A15Pro-215T?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21+ is more profitable at $-0.90/day compared to $-1.05/day for the Canaan Avalon A15Pro-215T. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S21+ or the Canaan Avalon A15Pro-215T better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Antminer S21+ or the Canaan Avalon A15Pro-215T?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
Antminer S21+ vs Canaan Avalon A15Pro-215T: how much does the efficiency gap matter?
The Antminer S21+ runs at 16.5 J/TH while the Canaan Avalon A15Pro-215T runs at 16.8 J/TH — a difference of 0.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 2% better efficiency (16.5 vs 16.8 J/TH).