Sera Monastery is one of the "great three" Gelug university monasteries of Tibet, located 2 km north of Lhasa and about 5 km north of the Jokhang Temple. Also known as "Wild Roses Monastery". The origin of its name is attributed to a fact that...
1) Mavic 3 radio system has better range, and is less susceptable to interference
2) M3 is quieter
3) M3 has zoom
4) Better aerodynamics of M3
5) M3 gains GPS lock faster than M2.
(P.S. this is from personal experience flying both M2's and M3's...