Which smartphone does all these things for $280?
Lenovo P780. I have this phone with me infact. I bought it coz I lost my Nokia Lumia 920 and couldn't afford to buy it again. Lenovo P780 is the best that you can get at this price. Beautiful, sharp, crisp 5" display, dual sim, 1.2 Ghz quad core processor, 1 GB ram, android 4.2 os, 8 megapixel rear camera, 0.3 mega pixel front camera, 8 Gb internal memory, upto 32 gb expandable through micro SD card slot, dual sim and 4000 mah battery (This is actually the selling point of this phone) Most of the android phone of this price comes with half the battery limit of this device. With samsung, sony you would hardly get batteries of upto 2000 mah in this price. These androids have a poor battery life within few months you would be charging them 3 times a day. This thing lasts more than a day to almost 2 days on 3G on a full single charge, even if you use it moderately and play your games. It's back panel is real metal, no plastic. It has got usb on the go, you can straightaway connect your pen drives, external usb storage and access it through your phone, watch your videos, music whatever. This basically means you have endless external storage, you can even connect wireless keyboard and mouse with it and yeah it's huge battery can charge someone else's phone by connecting through the usb port. It's solid, feels good, looks good and this is the only 1 GB ram android that I haven't seen lagging yet, it's running quite smoothly and was able to run High end 3D game like need for speed most wanted easily but oh yeah don't buy the Chinese version. I got to know a lot of people are being handed the Chinese versions of this handset in US and UK. You can open the back panel and check the non removable battery, if you find Chinese symbols in it or any other language apart from English don't buy it
What phone would you recommend if I am new to smartphones, preference on camera quality and battery life.
I would recommend you to buy OnePlus 5T as it has all the features which a smartphone should have that too under 40k. There are other options as well but price is too high for almost same specifications. Right now OnePlus 5T is the best handset in the market.OnePlus 5T Specifications:-6-inch full HD+ (1080×2160 pixels), Full Optic AMOLED, 2.5D Corning Gorilla Glass 5, 18:9 aspect ratio and bezel-less displayQualcomm Snapdragon 835 Processor, 2.45GHz quad core, Adreno 540 GPU6GB and 8GB RAM LPDDR4X64GB and 128GB UFS 2.1 internal storage optionsDual rear camera 20 Megapixel, Sony IMX376K, f/1.7 aperture + 16 Megapixel, Sony IMX 398, f/1.716 Megapixel front camera with Sony IMX371 sensor with 1 micron pixels and an aperture of f/2.03300mAh non-removable battery, Dash charge, 5V 4ANano SIM card slots (dual SIM cards supported)The phone weighs at 162gOperating system is Oxygen OS based on Android Nougat, will update to Android Oreo by decemberColor options include only Midnight Black as of now4G VoLTE, dual band (2.4GHz, 5GHz) WiFi 802.11ac with MIMO 2×2, NFC, GPS/A-GPS, 3.5mm audio jack, USB type C (v2.0) port, BT v5.0Hope this helps. You can visit my website Techtick » for more news and updates.Disclaimer:- I am associated with amazon and if you buy anything from amazon through my website amazon pays me a little commission on that product and you won't be charged anything extra for that and you will be eligible for all the offers provided by amazon.Thank you for reading.
Can I change a non removable battery of my phone and replace it with another of higher mAh?
Definitely, assuming you have a battery of identical size and voltage. I challenge you to find a battery that conforms to that. Your only other option is to add another battery on the back, and wire that in, which will be an external battery pack for all intents and purposes. Your phone manufacturer did choose that specific cell for a reason, so I recommend you stick with either that, or an external battery, unless you have cycled the battery too many times and have bad battery health, in which case you might want to consider an identical battery to the one you found inside originally.
Suggest good mobile phones.?
Here are the phone under 8000 INR... Just look them they all have their own indentity Sony Ericsson W205 - New with good features (walkman series phone) http://www.infibeam.com/SDP.action?catal... Approx Price: 5000 INR Nokia 5130 XpressMusic - Best seller phone with great music and camera http://www.infibeam.com/SDP.action?catal... Approx Price: 5500 INR Sony-Ericsson F305i - new one with good sound effects - camera is good http://www.infibeam.com/SDP.action?catal... Approx Price: 6500 INR Nokia 6303 Classic - nice slider phone http://www.infibeam.com/SDP.action?catalogId=P-E-M-Nokia-6303-Classic Approx Price: 7000 INR Nokia 5220 - good http://www.infibeam.com/SDP.action?catalogId=P-E-M-Nokia-5220 Approx Price: 7500 INR Nokia 7210 Supernova - best seller phone too... http://www.infibeam.com/SDP.action?catalogId=P-E-M-Nokia-7210-Supernova Approx Price: 5000 INR