1.What are the advantages of having a 4G network on your phone over one with only 3G?

2.What does a java enabled phone have over one that isn't?

3.What should one consider in making a choice between phone and tablets?

4. How reliable are used phones advertised on popular online sites? please,share your general experiences purchasing one through any of the sites and precautions taken before the purchase.

I need the answers to make a decision on a purchase urgently,thanks

This one na survey nao... Hw much you go pay

princejenks:
1.What are the advantages of having a 4G network on your phone over one with only 3G?

The simple answer is that a 4G network theoretically will have a higher data transfer rate. With the appropriate
amount of spectrum and good network
engineering, a Long Term Evolution (LTE)- based network has the potential to reach
100 Mbps, while a 3G network can top out at 70 Mbps. A more complex answer is that a 4G network is a pure data connection: that is, it is an end-to-end
Internet Protocol connection. This
provides some real advantages, but also
some disadvantages. On the one hand, a smartphone simply becomes another data
device whose native mode is as an
Internet-enabled terminal and that can
be managed as such.
On the other hand, services such as voice
require some additional machinations to support effectively. Since voice is not
intrinsically data-centric and must be
converted to data before it can be
transferred, voice-capable LTE handsets
have been slow in coming.
.
Advantages of 4G Network
1. It speedily downloads the files over 3G and 2G network system or form.
.
2. Particularly elevated voice excellence.
.
3. It can simply reach Internet, Instant Messaging (IM), common networks, video calling, and many more things.
.
4. It continues connected to the Internet devoid of any disturbance. It has simpler approach to the services & consumption.

Thanks bro,I really appreciate the effort