YIHUA 928D-IV
#3 in Smart ironsFull review
An affordable, complete USB-C iron kit for travel and light repair.
Amazon $69.99$69.99
The YIHUA 928D-IV rates 3.1 among smart irons soldering stations; the Thermaltronics TMT-9000S-1 rates 2.7 among soldering stations ones. The YIHUA 928D-IV costs $329.01 less ($69.99 vs $399).
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.
Thermaltronics TMT-9000S-1
A drop-in Metcal MX-500 replacement for shops already invested in that tip range. Newcomers get more flexibility from an adjustable cartridge station.
Amazon $399$399
Scores side by side
These two sit in different type classes (smart irons and soldering stations), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | YIHUA 928D-IV | Thermaltronics TMT-9000S-1 |
|---|---|---|
| Overall rating | 3.1/5 | 2.7/5 |
| Value 25% | 67 $1.08 per watt ($69.99, 65 W) | 0 $9.97 per watt ($399, 40 W) |
| Power 25% | 30 65 W iron | 0 40 W iron |
| Top temperature 10% | 50 up to 450 °C | 50 temperature is set by the tip cartridge (neutral score used) |
| Stability 10% | 50 stability not published (neutral score used) | 98 ±1.1 °C at idle |
| Features 20% | 45 cartridge tips, auto sleep or standby | 45 cartridge tips, auto sleep or standby |
| Warranty 10% | 25 1-year warranty | 100 4-year warranty |
Specifications
| YIHUA 928D-IV | Thermaltronics TMT-9000S-1 | |
|---|---|---|
| Soldering iron | ||
| Iron power | 65 W | 40 W |
| Temperature range | 90-450 °C (194-842 °F) | - |
| Idle stability | - | ±1.1 °C |
| Heat-up time (not scored) | 5 s | - |
| Tip system | C235 cartridge | Thermaltronics M Series cartridge |
| Tips included | Yes | Yes |
| Features | ||
| Display | LCD | LCD |
| Ports | - | 2 |
| Auto sleep or standby | Yes | Yes |
| Preset temperatures | - | None |
| Calibration | - | No |
| Build | ||
| Weight | - | 7.7 lb |
| Warranty | 1 year | 4 years |