Einstein is the smallest horse in the world.
But he is not officially included in Guinness Database because minimum 4 yrs age is required ( He was born in April 2010).
The World’s Smallest Horse according to Guinness World Records now is Thumbelina from Missouri.

Einstein is from New Hampshire and his height is only 35 cm ( 14 inches approx) and weighs 2.7 kg (61 lb).

“This has been a remarkable year for us and for Einstein “

said Mr Cantrell, the owners of this little horse.

“We are both horse enthusiasts and we decided to get ourselves a miniature horse from the renowned breeder Judy Smith at a Miniature Horse Farm in New Hampshire.”

Average weight of a newborn miniature horse is 18 lb. The average height at birth is 21 inches.
But he has no sign of dwarfism and all it’s body parts are totally symmetrical where as Thumbelina is a dwarf . So he has to wait another 2yrs to acquire Guinness world records.
His mother is 32 inches tall and his dad is 30 inches tall.

His best friend is Playboy , another horse living nearby. Lilly, his owners dog is also best play mates.

‘He approaches Lilly and Playboy just like he was a fully grown stallion. He rears up and huffs and gallops around.
‘However, due to his extraordinary size he can’t mingle around with other horses because it would be dangerous and he might get trampled underfoot.

Photos of smallest horse Einstein

Videos of smallest Horse