Antminer S19j Pro+ vs Antminer S21 Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19j Pro+ | Specification | Antminer S21 Pro |
|---|---|---|
| 117.0 TH/s | Hashrate | 234.0 TH/s |
| 3,355 W | Power Consumption | 3,510 W |
| 28.7 J/TH | Efficiency | 15.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 13.6 kg | Weight | 15.0 kg |
| 11,447 BTU/hr | BTU Output | 11,976 BTU/hr |
| 84/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S19j Pro+
Antminer S21 Pro
Based on BTC price of $68,640 and current network difficulty as of Mar 27, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21 Pro wins on 2 of 5 factors (efficiency, hashrate). The Antminer S19j Pro+ holds the edge in power consumption and home mining score and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S19j Pro+Score: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S21 Pro15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S19j Pro+ or Antminer S21 Pro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Pro is more profitable at $-1.46/day compared to $-4.57/day for the Antminer S19j Pro+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S19j Pro+ or Antminer S21 Pro?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S19j Pro+ or Antminer S21 Pro?
The Antminer S19j Pro+ scores 84/100 on our Home Mining Score (vs 30/100 for the Antminer S21 Pro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer S19j Pro+ and Antminer S21 Pro?
The Antminer S19j Pro+ runs at 28.7 J/TH while the Antminer S21 Pro runs at 15.0 J/TH — a difference of 13.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.