HL-3260N and HL-5370DW share specifications such as Printer Functions (Print), Ethernet (Yes), Product Brand (Brother), Product Series (HL Series).
The main differences: Print Technology (HL-3260N: Laser, HL-5370DW: Laser/LED); Black Print Speed A4 (HL-3260N: 32 ppm, HL-5370DW: 30 ppm); Print Resolution (HL-3260N: 600 x 600 dpi, HL-5370DW: 1200 x 1200 dpi).
HL-3260N may suit users who need its differing values, while HL-5370DW benefits those who need its paired strengths. Review the specs table above before deciding.