Envy 13-ad009n and Aspire 3 A315-51 share specifications such as Launch Year (2017 year), Form Factor (Clamshell), Operating System Architecture (64-bit), Processor Manufacturer (Intel).
The main differences: Processor Model (Envy 13-ad009n: Intel Core i7-7500U, Aspire 3 A315-51: Intel Core i3 7130U 2.7GHz); GPU Model (Envy 13-ad009n: NVIDIA GeForce MX150, Aspire 3 A315-51: Intel HD Graphics 620); Installed Memory (Envy 13-ad009n: 8 GB, Aspire 3 A315-51: 4 GB); Storage Capacity (Envy 13-ad009n: 256 GB, Aspire 3 A315-51: 1000 GB).
Envy 13-ad009n may suit users who need its differing values, while Aspire 3 A315-51 benefits those who need its paired strengths. Review the specs table above before deciding.