| Great Dane | Mastiff | |
|---|---|---|
| Lifespan | 7-10 years | 6-10 years |
| Size | Giant | Giant |
| Weight | 110-175 lb | 120-230 lb |
| Energy | Moderate | Low |
| Grooming | Low | Low |
| Shedding | Moderate | Moderate |
| With kids | With supervision | With supervision |
A dog this size usually only gets about 7 to 10 years with you, and its deep chest puts it at real risk of sudden, fatal stomach bloat (GDV) that breeders rarely mention at pickup.
A Mastiff's life is short even by giant-breed standards, commonly well under a decade, and that same huge frame carries a serious lifetime risk of sudden, fatal stomach bloat, so you are taking on a very short and potentially very expensive lifespan.
Great Dane ·
Mastiff
Health problems, origin and what living with each is actually like.