Which android version is better: KitKat or Lollipop?

thank you all for your valuable suggestions......

Android Lollipop

it's  helps us with this issue. Just like  different Users in Windows, it's  gives you the liberty to add guest  users or even create a profile for a friend/relative 

Lollipop is better -even if it needs more hardware capabilities- for these reasons:

• Material design
• Improved RAM management
• Improved battery management

Nothing is better nor best. They have the advantages and disadvantages.

your question is in general Which is better !? 

Generally each version release means it comes with new enhacements and features to serve EndUser Current Trend Tech.!

but for me as Developer .. i'd say kitkat , Why ? because the current kitkat consumers percentage is higher than lollipop.

but in tech as in upgrade , yes ofc lollipop

your question is in general , please specify it ^^

well nothing is better , for example kitkat maybe faster than lollipop cuz theres not too much animation , but lollipop maybe better in the battery draining , and also it depends on ur phone type.

however if u updated ur phone from kitkat to lollipop u can not get it back.

so what u need to do is watch kitkat vs lollipo on ur phone type on youtube. that is the best thing to do. cheers!!

Lollipop is better than kitkat because it contains new features and material design. 

kitkat lollipop crushes all the time, after updating to lollipop the phone battery will be damaged for all kind of mobile phones so what is the use if it kills the hardware of the mobile

lollipop is better than kitkat , loulipop makes the phone useless to a common thief

lollipop because of following features:

1. Inbuilt FlashlightIt would always be puzzling as to why Google did not pin a flashlight  in our notifications panel just like iOS has in its control center.  Lollipop brings out that change. Without installing any third-party  apps, users can simply use the flashlight by pulling down the  notification panel. Make sure your smartphone has an LED flash.2. Battery changesBattery seems to be given priority in Android Lollipop. No longer do  users have to lay bets on how long their battery would last for. The new  OS has two new and much needed features which were not available on  KitKat. It shows you how long it would take to charge your phone and a  small graph showcasing how much time is left before the battery runs  out. After you have plugged in your phone for charge, your home screen  will show you the time until full charge.3. Guest userWe all have people around us who lay their hands on our phones.  Thankfully, Android Lollipop helps us with this issue. Just like  different Users in Windows, Lollipop gives you the liberty to add guest  users or even create a profile for a friend/relative. This way, you can  limit the amount of information that others can view. You can add a  guest by simply going to Settings – Users – Add Guest.4. Flappy Bird easter eggIf Flappy Bird wasn’t frustrating, Lollipop offers you a modified  version of the game. Instead, here you have an Easter egg to unlock.  Users can go to Settings – About phone and click several times and you  will get the android robot in place of the bird.5. Notification panelNeedless to say, the notification panel has been made too simple for  the user. It’s simplicity in design is the plus point. Unlike KitKat,  the most useful feature added here is the ability to view your detailed  notifications on your lock screen. Though this might be a problem around  work spaces if you leave your phone unattended, anyone can have a look  at your notifications even though your phone is locked. It can be  disabled by going to Settings – Sound and Notification – When device is  Locked – Don’t show notifications at all.6. Trusted PlacesTrusted Places is a smart feature which has been added in to  Lollipop. Though most of our phones have passwords, it would be a task  to disable it when we enter familiar premises such as our car or home.  Trusted Places is a feature where a user can declare certain locations  as safe and they wouldn’t need to unlock their phones once they enter  those spaces. You can set the location by heading to Settings – Security  – Smart Lock.7. Soft key redesignSoft key buttons receive a change in this update and it is a rather, a  surprising change. The icons are smaller and look compact. A very  simple yet pleasant design.8. Multitasking Multitasking has completely changed in Android Lollipop. The feature  allows you to scroll through your notifications in a simpler manner. It  is easier and allows you to see more details even before you enter the  app.9. Prioritize appsIt can be super annoying if your phone is filled with umpteen apps  and throughout the day, you are bombarded with notifications. Lollipop  gives you the liberty to prioritize your apps so that you can receive  notifications from the ones you want. It works out perfectly during  sleep hours as you can only receive notifications from important apps  and not games or check-in notifications.10. Quick access to Chromecast   No need to install any third-party apps once you have the updated  your phone to Lollipop. There is an official app now from Google to  solve our problems. For the people who love to stream media from  dongles, it is as simple as going to the notification panel and taping  on Cast Screen.

Lollipop is better in Interface than Kitkat and its has more features than Kitkat. Lolipop is most popular android version