HL-5150D and LaserJet Pro MFP M227fdw share specifications such as Print Technology (Laser), Automatic Duplex Printing (Yes), USB (Yes), Maximum Custom Media Width (215.9 mm).
The main differences: Printer Functions (HL-5150D: Print, LaserJet Pro MFP M227fdw: Print, Scan, Copy, Fax); Black Print Speed A4 (HL-5150D: 20 ppm, LaserJet Pro MFP M227fdw: 28 ppm); Print Resolution (HL-5150D: 2400 x 600 dpi, LaserJet Pro MFP M227fdw: 600 x 600 dpi).
HL-5150D may suit users who need its differing values, while LaserJet Pro MFP M227fdw benefits those who need its paired strengths. Review the specs table above before deciding.