Antminer S19j Pro vs Whatsminer M50S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19j Pro | Specification | Whatsminer M50S |
|---|---|---|
| 100.0 TH/s | Hashrate | 126.0 TH/s |
| 3,050 W | Power Consumption | 3,276 W |
| 30.5 J/TH | Efficiency | 26.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 13.2 kg | Weight | 12.8 kg |
| 10,407 BTU/hr | BTU Output | 11,178 BTU/hr |
| 84/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S19j Pro
Whatsminer M50S
Based on BTC price of $77,963 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
The mid-range workhorses of the previous generation. Bitmain's S19j Pro and MicroBT's M50S both defined the sweet spot of performance and value in their era.
Specs are competitive between these two. The S19j Pro has a more established repair ecosystem and secondary market. The M50S offers slightly different power and cooling characteristics. Price and availability should drive your decision.
Spec Deltas
Here is every spec where the Antminer S19j Pro and Whatsminer M50S actually differ, with the gap quantified:
- Whatsminer M50S 26% more hashrate (100 vs 126 TH/s)
- Antminer S19j Pro 7% better power draw (3,050 vs 3,276 W)
- Whatsminer M50S 15% better efficiency (30.5 vs 26.0 J/TH)
- Whatsminer M50S 3% better weight (13.2 vs 12.8 kg)
- Whatsminer M50S 7% more heat output (10,407 vs 11,178 BTU/hr)
- Antminer S19j Pro 133% more home mining score (84.0 vs 36.0)
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 S19j Pro | Metric | Whatsminer M50S |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $3,200 |
| -$3.73 | Daily net profit | -$3.34 |
| -$3,862 | Net after 1 year | -$4,420 |
| -$5,225 | Net after 2 years | -$5,640 |
| -$6,587 | Net after 3 years | -$6,859 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
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
Antminer S19j ProScore: 84/100. 75 dB noise level.
Best for Efficiency
Whatsminer M50S26.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which is more reliable for 24/7 operation?
Both are proven in commercial deployments. The S19j Pro has a larger installed base, which means more community knowledge and parts availability for self-repair.
Which is quieter for home use?
Both are industrial miners producing 75+ dB. Neither is suitable for home use without significant sound dampening. Consider D-Central's Space Heater editions for quiet home mining.