Several mid-range and entry-level smartphones have been selected and receive them but not all are graced for the same update plans. Here are several Android phones among hundreds which are not getting an official KitKat update.

HTC Smartphones

Several HTC smartphones are not entitled to get Android 4.4 KitKat but may be updated with bug fixing firmware instead. HTC focuses on its current line-up and still unsure if One X and One X+ are receiving future upgrades. Here are some of their phones that should get a taste of KitKat:

1. Older One edition phones: S, SC, XL, ST

2. Older Desire edition phones: C, V, VC, XC, VT, X, SV

3. First

4. Velocity 4G

5. EVO 4G LTE

6. Rezound

7. Sensation XL

LG Optimus Line

LG G2 and G Pad 8.3 are the ones nominated for Android 4.4 upgrade with Vanilla version. LG launched several models under the Optimus line, which should get the latest firmware.

1. VU, VU 2

2. L3, L5, L7, L9 first generation

3. Optimus G

4. Optimus G Pro

5. Optimus G Lite

6. Optimus F3, F5, F6, F7

Samsung Galaxy

Older Galaxy smartphones are unable to receive update due to hardware incompatibility, requiring 512 MB of RAM to run Android 4.4 KitKat. But several others deserve to get optimisation with Android 4.4.

1. Galaxy S2

2. Note 1

3. Galaxy Mini 2

4. Galaxy Premier

5. Galaxy Grand

6. Galaxy Win

Sony Xperia

Sony included Xperia Z series such as Z1, ZR/ZL, Z Ultra to get Android 4.4 KitKat scheduled in 2014. In addition, several mid-range smartphones, including Xperia SP, V, T and TX. However, more Xperia devices are eligible to run Android 4.4 KitKat but hasn't been declared to get one.

1. Xperia SL

2. Xperia J

3. Xperia Go, miro, sola

4. Xperia P

5. Xperia U

6. Xperia Acro, Acro S

7. Xperia Neo, Neo L

8. Xperia Tipo, Tipo Dual

9. Xperia E, E Dual

Due to the strict implementation of 18-month window update period guidelines used by manufacturers, most compatible and eligible smartphones are unable to receive further Android version and owners resort to flashing custom ROMs to get new features.