As few steps forward to Go series of apps. Google has introduced gmail go for android users. The Go apps take up less space on smartphones even when used on lower-end processors or places with poor connectivity or expensive cellular data prices.
In Gmail Go you will enjoy all basics features but images won't load automatically so that it can use less ROM and RAM. It will not only take less space but uses less data than the standard Gmail app. You will have 15GB free storage with support for multiple accounts, automatically filter social and promotional emails while prioritizing emails from friends and family, receive new mail notifications and read and respond both online and offline.