So I’ve had it for about 3 weeks now, my mobile phone upgrade, the impressive Nokia Lumia 820.

To be fair, there is not much difference between my previous phone, the Lumia 800 and this one, the most notable however being the screen size, 4.3″ as opposed to the 3.7″ on the 800. For years I have listened to men telling me that size matters and in this case it certainly has made a difference and put a smile on my face.

The AMOLED screen is bright and responsive and features Super Sensitive Touch meaning it can still be used, even when wearing gloves.

Windows Phone 8 allows for live tiles with 3 sizes, meaning with just a couple of presses you can customize your home screen to suit your lifestyle adding people, apps, weather and any other tiles you desire.

A feature I was glad to see introduced, was the ability on this phone to adjust text size through various key places on the phone, i.e. text messaging. Sometimes on the 800 I had struggled with text, especially in low light, which is not something you want when you are a spectacle wearing geek!

Notable in its absence however, is the option to change your keyboard layout, it’s qwerty or nothing I’m afraid. I loved my alpha numeric keypad on previous phones and miss it dearly, I have not been able to warm to the presence of the full keyboard and find my texts and e-mails littered with comma’s as they are so close to the space bar. I am fully expecting the glass to wear away in the position of the back space.

Another thing lacking is the ability to be able to personalise your phone with text message tones. After reading through various forums I see that I am not alone in my despair over this. I can only hope it has been considered and will be added when the new software update rolls out in the next couple of months.

The integrated Xbox app works well and seems to have fewer of the connection problems I experienced with the 800. Smartglass has been built in and your avartar is now larger and can be customised from the comfort of your armchair using your phone.

You certainly wouldn’t be buying a Windows Phone if you are an App fanatic, as the Windows marketplace holds nowhere near as many as the likes of the Play store on Google. It is not hard to tell, that at the moment Windows phone are seriously lagging behind the competition in sales, as they are not very well supported, some companies being unable to confirm if this will ever change.

My main reason for buying a Nokia however, was for the signal strength, and from the options available within their range, the Windows operating system was the best of the bunch, in my opinion.

I live in a low signal area, which few networks support and had changed to the Nokia Lumia 800 from my previous HTC Sensation due to the fact that I was not able to send or receive text messages and make or receive calls.

The 820 seems to be fairly good, however I would say the 800 would have had slightly better reception, and for this reason I am a little disappointed with my upgrade, but so far so good, it’s still early days.

I was excited this week to learn about O2’s new app called Tu Go.

No signal? Download our TU Go app to call or text from your O2 number over wifi

Sounds great right, especially for someone like me who has signal issues. Downloading the app would allow me to be able to make and receive calls in the house by using my WiFi connection. You usage is still taken from your monthly allowance, but in the grand scheme of things that wouldn’t matter as much as being able to make and receive telephone calls!

One snag – there is no App for Windows Phone. At present it’s only available for Iphone, Android, and Windows 7 PC’s. Worse still, it doesn’t look like one is coming any time soon, if at all. Another large company not supporting Windows phone despite Telefónica announcing a Windows partnership, tut tut! Better get that sorted.

The introduction of this one app would make me consider Ebaying the Lumia and replacing it with an Android phone again, however as the Tu Go app is relatively new, I’ll give them a little time to get their act together.

Overall I’d give the Nokia Lumia 820 a hefty 8 outta 10. For what I need it for, it’ll do just fine…for now!!