Microsoft Lumia 640 review

Introduction
Low-end Lumias dominate the Windows Phone market but aren’t prestigious. To fix this, Microsoft crafted the Lumia 640 Trojan horse – a capable mid-ranger hiding behind an undeservedly low model number. It comes with pick-and-choose LTE and dual-SIM connectivity, a camera that punches above its weight and a quality screen. Slowly but steadily, Microsoft is commencing its push into the mid-range, which for now is owned by Android.
The Lumia 6-series began life as the lowest rung of the ladder. Since then Microsoft has extended the ladder with the 5 and 4 series. To live up to its new standing in life, the Lumia 640 brings an HD screen and a 1080p video camera, which were traditional weak spots for the sixes – WVGA screen and 480p video was the norm.
Those are indeed the highlights of this phone. The 5″ IPS panel is nearly as sharp as an iPhone Retina display and boasts ClearBlack (a filter that reduces glare) and Gorilla Glass 3. The 8MP camera with 1080p video matches the iPhone 6 on paper, though we’ll see if the tiny sensor lives up to that promise.

Key features

  • 5″ 16M-color ClearBlack IPS LCD display of 720p resolution, Gorilla Glass 3
  • Qualcomm Snapdragon 400 chipset with quad-core 1.2 GHz Cortex-A7 processor, Adreno 305 GPU and 1GB of RAM
  • Windows Phone 8.1 OS with Lumia Denim; updateable to Windows 10
  • Optional dual-SIM; optional LTE
  • 8MP autofocus camera with 1080p@30fps video recording; 1MP/720p selfie camera
  • 8GB of inbuilt storage, expandable via a microSD card slot up to 128GB
  • Active noise cancellation with a dedicated mic
  • FM Radio with RDS
  • Li-Ion 2,500mAh battery

    Main disadvantages

  • No headset included in the retail package
  • Cheaper Lumias get the same Snapdragon 400 chipset
  • Only 3GB of internal storage left for the user

    The comparisons to the iPhone are more aspirational than anything, a more realistic comparison will be with the likes of Moto E (2015) and Moto G (2014). The Microsoft Lumia 640 is in their price bracket (depending on the connectivity setup) and has the edge in screen, camera and battery challenges.

    Despite its popularity, the Snapdragon 400 chipset is clearly showing its age. Windows Phone isn’t as demanding as Android though, the one area that will really strain the chipset is games – Adreno 305 on a 720p screen is a bit of a stretch. We’ll see what the benchmarks have to say about that.

    The “Lumia 640″ is really three different devices. The base device has two SIM slots and 3G connectivity, but there are LTE-enabled versions with one or two SIM slots. We have the single-SIM LTE version with us, but connectivity aside the review covers all 5” 640s.
    The Microsoft Lumia 640 is shaping up as a capable, lower-cost alternative to the Lumia 730 and 830. Those boast Carl Zeiss optics and finer bodies, but the lines between Lumia lines have blurred.
    The phone it comes to replace, the Lumia 630/635, looks quite plain in comparison – smaller, sub-HD screen, no 1080p video capture or selfie camera, just 512MB RAM and no option for both LTE and dual-SIM. So, if you had any impressions of Lumia’s 6-series you need to put them aside, the Lumia 640 is a big step forward.

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