Xiaomi Redmi 1S review: Stormtrooper

Display

The Xiaomi Redmi 1S features a 4.7" HD IPS display with a pixel density of 312ppi. It's covered by AGC Dragontrail glass for protection against scratches and cracks from pressure.

The 4.7" IPS display Xiaomi Redmi 1S

Here is the display matrix of the Xiaomi Redmi 1S shot with our digital microscope. Taking a closer look at it reveals a standard RGB arrangement of the sub-pixels that make up the Xiaomi Redmi 1S LCD panel, not that we've expected anything else.

The display on the Xiaomi Redmi 1S is quite bright at 100% with great contrast and colors. Unfortunately dropping the brightness reduces the brightness quite sharply and the screen becomes dim very soon, the 50% setting is actually closer to 25% of the actual brightness.

An important note has to be made here - the screen, while employing an excellent panel has a very reflective glass on top, which causes its image quality to degrade rapidly when there are external light sources present. So while it looks great in a pitch black room, it loses a great part of its coolness in even moderately lit environments.

The sunlight legibility is also quite poor due to the highly reflective glass. You are going to have a hard time using the Redmi 1S in the bright sunny days.

Sunlight contrast ratio

• Nokia 808 PureView
  4.698
• Apple iPhone 5
  3.997
• Samsung Galaxy Note 3
  3.997
• Samsung Galaxy K zoom
  3.675
• Nokia Lumia 930
  3.567
• Apple iPhone 5s
  3.565
• Samsung Galaxy S5
  3.549
• Alcatel Idol X+
  3.527
• Apple iPhone 5c
  3.512
• Samsung Galaxy Alpha
  3.509
• Samsung Galaxy Note 3 Neo
  3.487
• Motorola RAZR MAXX
  3.42
• Samsung I9300 Galaxy S III
  3.419
• Nokia Lumia 925
  3.402
• Gionee Elife S5.5
  3.386
• Samsung I9505 Galaxy S4
  3.352
• Samsung Omnia W
  3.301
• Samsung Galaxy S5 mini
  3.174
• Samsung I9000 Galaxy S
  3.155
• Samsung Ativ S
  3.129
• Samsung I9190 Galaxy S4 mini
  3.127
• Samsung Galaxy S4 zoom
  3.118
• Nokia N9
  3.069
• Samsung Galaxy Note
  2.97
• Samsung Galaxy Premier
  2.958
• Sony Xperia Z1
  2.95
• HTC One S
  2.901
• Samsung I8730 Galaxy Express
  2.861
• BlackBerry Q10
  2.856
• Samsung I9100 Galaxy S II
  2.832
• Samsung Galaxy S II Plus
  2.801
• BlackBerry Z30
  2.79
• Sony Xperia ZR
  2.672
• Huawei Ascend P1
  2.655
• Sony Xperia Z3 Compact
  2.616
• Sony Xperia T3
  2.609
• Nokia Lumia 900
  2.562
• Motorola Moto G 4G
  2.546
• HTC One Max
  2.537
• Nokia Lumia 720
  2.512
• HTC One
  2.504
• Motorola Moto G
  2.477
• Sony Xperia Z
  2.462
• Xiaomi Mi 4
  2.424
• Samsung Galaxy S III mini
  2.422
• LG G Flex
  2.407
• HTC One (M8)
  2.371
• Motorola RAZR i
  2.366
• Sony Xperia ZL
  2.352
• Samsung Galaxy Note II
  2.307
• Oppo Find 7a
  2.279
• Alcatel One Touch Hero
  2.272
• Apple iPhone 4S
  2.269
• HTC Desire 600 dual sim
  2.262
• Nokia Asha 311
  2.25
• LG Nexus 5
  2.228
• Nokia Lumia 820
  2.193
• HTC One (E8)
  2.185
• Nokia Lumia 920
  2.17
• HTC One X
  2.158
• Nokia N8
  2.144
• Nokia Lumia 620
  2.142
• Nokia 515
  2.134
• HTC Desire 500
  2.129
• Sony Xperia acro S
  2.119
• Nokia Lumia 1020
  2.103
• Oppo Find 5
  2.088
• Sony Xperia SL
  2.078
• Nokia Lumia 630
  2.056
• BlackBerry Z10
  2.051
• Samsung I9295 Galaxy S4 Active
  2.022
• Apple iPhone 4
  2.016
• HTC One mini
  2.003
• Xiaomi Mi 3
  2.001
• Huawei Ascend P7
  1.992
• LG G2
  1.976
• OnePlus One
  1.961
• Oppo R819
  1.957
• Sony Ericsson Xperia ray
  1.955
• Sony Xperia Z2
  1.944
• Nokia Lumia 1320
  1.941
• HTC One mini 2
  1.94
• Samsung Galaxy Camera
  1.938
• Sony Xperia J
  1.932
• Acer CloudMobile S500
  1.931
• LG Nexus 4
  1.926
• LG G Pro 2
  1.922
• Samsung Galaxy Mega 6.3
  1.913
• Nokia Asha 308
  1.911
• Sony Xperia T
  1.894
• HTC Desire X
  1.878
• HTC Windows Phone 8X
  1.873
• HTC Butterfly
  1.873
• HTC Butterfly S
  1.867
• Huawei Ascend P6
  1.865
• Huawei Ascend Mate
  1.845
• LG G2 mini
  1.838
• LG G3
  1.82
• Nokia Lumia 1520
  1.813
• HTC Desire 616 dual sim
  1.797
• Sony Xperia V
  1.792
• HTC Desire 816
  1.783
• Sony Xperia Z1 Compact
  1.772
• HTC Desire 700 dual sim
  1.769
• Sony Xperia U
  1.758
• Meizu MX3
  1.754
• LG Optimus G
  1.753
• Sony Xperia T2 Ultra
  1.74
• Sony Xperia SP
  1.733
• Oppo Find 7
  1.691
• LG Optimus 4X HD
  1.691
• HTC One V
  1.685
• BlackBerry Q5
  1.682
• LG Optimus Vu
  1.68
• Xiaomi Mi Pad 7.9
  1.672
• LG Optimus GJ
  1.666
• LG Optimus 3D Max
  1.658
• HTC Desire V
  1.646
• Samsung Galaxy Xcover 2
  1.632
• Samsung Galaxy Ace 3
  1.622
• Jolla Jolla
  1.605
• Sony Xperia Z Ultra
  1.578
• Sony Xperia go
  1.577
• Samsung Galaxy Ace 2 I8160
  1.566
• Samsung Galaxy Core
  1.563
• LG Optimus G Pro
  1.552
• Motorola Moto E
  1.545
• LG Optimus 3D
  1.542
• Nokia Asha 302
  1.537
• BlackBerry Curve 9320
  1.488
• Sony Xperia M
  1.473
• Oppo N1
  1.47
• Meizu MX 4-core
  1.462
• Nokia Lumia 610
  1.432
• Samsung Galaxy S Duos
  1.4
• Sony Xperia M2
  1.393
• Samsung Galaxy Grand Neo
  1.393
• Samsung Galaxy Grand 2
  1.38
• Sony Xperia E1
  1.372
• Nokia Lumia 625
  1.371
• Gigabyte GSmart G1355
  1.361
• Sony Xperia L
  1.351
• Samsung Galaxy Mega 5.8
  1.35
• Xiaomi Redmi 1S
  1.35
• Sony Xperia M2 Aqua
  1.331
• Sony Xperia miro
  1.324
• Samsung I9082 Galaxy Grand
  1.321
• Samsung I8530 Galaxy Beam
  1.315
• HTC Desire C
  1.3
• Nokia X
  1.291
• Sony Xperia C
  1.283
• Nokia Asha 503
  1.281
• Nokia Asha 501
  1.27
• LG Optimus L7
  1.269
• Nokia Lumia 510
  1.268
• Samsung Galaxy Fame
  1.245
• LG Optimus L9
  1.227
• Meizu MX
  1.221
• Samsung Galaxy Young
  1.22
• Sony Xperia E
  1.215
• Nokia XL
  1.204
• Sony Xperia E dual
  1.203
• Samsung Galaxy Pocket
  1.18
• Nokia Asha 305
  1.178
• Nokia Asha 306
  1.175
• Sony Xperia neo L
  1.169
• Sony Xperia tipo
  1.166
• Nokia Lumia 520
  1.161
• Samsung S6802 Galaxy Ace Duos
  1.148
• Samsung Galaxy mini 2
  1.114

Xiaomi is providing options for color temperature and saturation. Glove mode is available too, but you probably shouldn't leave that turned on if you don't need it because it may drain your battery faster.

Finally there is an option to prevent accidental unlocks of your screen, while the phone is in your pocket. If enabled, you won't be able to unlock the scren while something is covering the proximity sensor. Again, that would take its toll on the battery life.

Battery life test

Xiaomi has put a 2,000mAh battery inside the Redmi 1S and it is removable, so you can replace it anytime you want. We ran our battery test and the Xiaomi Redmi 1S scored 51 hours, which means you can count on two full days if you do an hour each of calling, web browsing and playing video per day.

For a more detailed breakdown of the Xiaomi Redmi 1S battery performance check out our blogpost.

Our proprietary score also includes a standby battery draw test, which is not featured in our battery test scorecard but is calculated in the total endurance rating.

Our battery testing procedure is described in detail in case you want to learn more about it.

Connectivity

The Xiaomi Redmi 1S is a dual-SIM phone with dual stand-by. It works with mini-SIM cards, but 3G data speeds are only available on the first SIM. Here's the list of supported standards:

• Tri-band GSM/GPRS/EDGE 900 / 1800 / 1900 MHz (SIM1 & SIM2)
• 3G: 1900 / 2100, 21 Mbps HSDPA (SIM1)

LTE is the obvious thing missing here, but that's hardly a frequent occurrence among the phones as affordable as the Xiaomi Redmi 1S. In fact this one has an LTE version, but that's single-SIM only and is only available in China.

The rest of the connectivity features include Wi-Fi b/g/n, Wi-Fi Direct and hotspot. There is also support for Bluetooth 4.0, GPS and GLONASS, plus an FM radio with RDS.

There is a microUSB 2.0 port for charging and data connections. Media transfer mode is supported for accessing the phone's built-in memory and microSD card over the USB cable. The microUSB 2.0 port can also be used in USB On-the-go mode for connecting USB peripherals such as pen drives, keyboards or real USB hard drives.