YIHUA 939D+ III EVO
A well-equipped budget station for hobbyists who want presets, sleep and more power than entry stations.
Amazon $79.99$79.99
The YIHUA 939D+ III EVO is the better soldering station overall, rated 3.6 to 3.2. The YIHUA 939D+ III EVO leads on value and top temperature. The Hakko FX-971 wins on features. The YIHUA 939D+ III EVO costs $249.98 less ($79.99 vs $329.97).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Hakko FX-971
A 100 W cartridge station for busy repair and production benches that want Hakko support and software control. Hobby users get most of the benefit for less elsewhere.
Amazon $329.97$329.97
Which should you buy?
- Choose the YIHUA 939D+ III EVO for value ($0.73 per watt ($79.99, 110 W) vs $3.30 per watt ($329.97, 100 W)) and top temperature (up to 480 °C vs up to 450 °C).
- Choose the Hakko FX-971 for features (cartridge tips, auto sleep or standby, preset temperatures, settings lock, calibration vs auto sleep or standby, preset temperatures, calibration).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every soldering stations soldering station; a clear win is highlighted. How we rank explains each one.
| Factor weight | YIHUA 939D+ III EVO | Hakko FX-971 |
|---|---|---|
| Overall rating | 3.6/5 | 3.2/5 |
| Value 25% | 84 $0.73 per watt ($79.99, 110 W) | 18 $3.30 per watt ($329.97, 100 W) |
| Power 25% | 63 110 W iron | 57 100 W iron |
| Top temperature 10% | 80 up to 480 °C | 50 up to 450 °C |
| Stability 10% | 50 stability not published (neutral score used) | 60 ±3 °C at idle |
| Features 20% | 45 auto sleep or standby, preset temperatures, calibration | 85 cartridge tips, auto sleep or standby, preset temperatures, settings lock, calibration |
| Warranty 10% | 25 1-year warranty | 25 1-year warranty |
Specifications
| YIHUA 939D+ III EVO | Hakko FX-971 | |
|---|---|---|
| Soldering iron | ||
| Iron power | 110 W | 100 W |
| Station power | - | 100 W |
| Temperature range | 200-480 °C (392-896 °F) | 50-450 °C (122-842 °F) |
| Idle stability | - | ±3 °C |
| Tip system | - | Hakko T39 cartridge |
| Tips included | Yes | No |
| Features | ||
| Display | LCD | LCD |
| Ports | 1 | 1 |
| Auto sleep or standby | Yes | Yes |
| Preset temperatures | 4 | 5 |
| Calibration | Yes | Yes |
| Settings lock | - | Yes |
| Build | ||
| Weight | - | 2.6 lb |
| Warranty | 1 year | 1 year |