The Lenovo Vibe K5 has a fully custom phonebook. It is laid out across four tabs: dialer, call log, contacts, and favorites. There's smart dial support, as well as speed dial.
Contacts is self explanatory - you get an alphabetized list of them, which you can search or filter them by first letter.
The Vibe K5 is a dual SIM device (both micro SIMs) and as such has settings for SIM handling. Each card can be assigned a name and a number, and cards can be disabled from the menu, so you don't have to physically remove them, if for some reason you don't want to use one.
You can select default cards to use for voice calls, messaging and data, or have the phone ask you each time.
The Lenovo Vibe K5 scored a Good rating in our loudspeaker test, which is a bit odd given that its Plus sibling managed a notch higher. Presumably the hardware is the same - two speakers, in stereo.
If you look at the numbers though, they are only a decibel or two lower in each individual test, but it adds up to a different overall rating in the end. It's still pretty loud, and louder than major competitors, so there's nothing to worry about in this department.
|Speakerphone test||Voice, dB||Ringing ||Overall score|
The messaging section is business as usual with all SMS/MMS communication organized into threads. Attaching a photo, video, audio recording or the like automatically turns your message into an MMS.
The Lenovo Vibe K5 employs the stock Android keyboard. It doesn't have a dedicated number row, but numbers do come out upon a long press. You can choose between a number of color themes or even pick a photo of your own for background.