SpecTRAX device availability tracking shows that the Sony Xperia Z5 and Xperia M4 Aqua have made it into the Top 10 most widely available smartphones of January 2016. This Top 10 is usually dominated by premium  handsets from Apple, Samsung, LG & HTC. This is the first time two Sony devices have made it to this level of ranking, and potentially more significant is the fact that Sony’s Xperia M4 Aqua is a mid tier smartphone.  LG’s G4 and the HTC M9 were displaced from the top 10 but still placed within the top 20 smartphones.

SpecTRAX availability data is collected  from >350 global retail and operator channels and reported on a weekly, monthly or quarterly basis. 

During January 2016 the ten most widely-available smartphones were:

1. Apple iPhone 6s (71%)
2. Apple iPhone 6 (70%)
3. Apple iPhone 6s Plus (69%)
4. Apple iPhone 6 Plus (68%)
5. Apple iPhone 5s (64%)
6. Samsung Galaxy S6 (63%)
7. Samsung Galaxy S6 edge (59%)
8. Samsung Galaxy S6 Edge Plus (51%)
9. Sony Xperia Z5 (50%)
10. Sony Xperia M4 Aqua (49%)