• 4.7" IPS Display for Optimal Viewing
  • Long-Lasting 2,460 mAh Battery1
  • Powerful 1.2 GHz Quad-Core Processor
  • Knock ONTM Wakes Your Phone Easily
The LG Optimus L90 is a multi-talented smartphone that’s sleek and sophisticated on the outside, yet strong and sturdy on the inside.

Technical Specifications

    • Carrier
    • T-Mobile


    • Type
    • Smart Phone
    • Form Factor
    • Bar
    • Technology
    • GSM*
    • Processor
    • 1.2 GHz Quad-Core Processor
    • Network
    • Tri-Band*
    • Frequencies
    • GSM 850/900/1800/1900 MHz, UMTS Bands 2/4/5*
    • Data Transmission
    • GPRS Class 12, UMTS (W-CDMA), EDGE, HSDPA*
    • Dimensions
    • 5.18" (H) x 2.60" (W) x 0.38" (D)
    • Weight
    • 4.37 oz
    • Display
    • 4.7" qHD (960 x 540) IPS Display
    • Touch Screen
    • Yes
    • Battery Capacity
    • 2,460 mAh
    • Talk Time
    • Up to 6 Hours**
    • Standby Time
    • Up to 6 days**
    • Total Internal Memory
    • 8 GB
    • MicroSD® Memory Slot
    • Support up to 32 GB***
    • *
    • All listed frequency support is network/carrier specific. Roaming capability and network frequency support may not be available. Check with your network provider to see if and to what extent they offer support for this device.
    • **
    • Certain features may use more power and cause actual time to vary.
    • ***
    • MicroSD® cards sold separately

LG and Android™ Enhancements

    • Android™ Platform
    • Android™ 4.4, KitKat®


    • Network
    • T-Mobile 4G Network*,**
    • Mobile Hotspot
    • Share a data connection with other compatible wireless devices.*,**,***
    • Wi-Fi® Connectivity
    • 802.11 b/g/n (2.4 GHz only)
    • Bluetooth® Version
    • 4.0
    • GPS
    • S-GPS Support for Location Accuracy
    • *
    • T-Mobile’s 4G Network not available everywhere
    • **
    • All listed frequency support is network/carrier specific. Roaming capability and network frequency support may not be available. Check with your network provider to see if and to what extent they offer support for this device.
    • ***
    • Depends on network availability. Additional carrier charges may apply.


    • Live Zooming
    • Zoom in/out on videos during playback.
    • QuickRemote™
    • Control compatible TVs and cable provider set-top boxes.
    • Video Player
    • With Touch Lock and Resume Play Function; supports H263, MPEG4, H.264, VP 8/9, XviD, M-JPEG, THEORA, WMV, VC1, DivX codecs
    • Music Player
    • With Custom Audio Effects*: supports AAC, AAC+, eAAC+, MP3, Vorbis, FLAC, PCM, AC3, EVRC, QCELP, WMA codecs
    • Media Sync (MTP)
    • Transfer files or synchronize with Windows® Media Player.**
    • Accelerometer
    • Control games by turning and tilting the phone.***
    • Plug&Pop
    • Automatically launch entertainment apps when you plug in a USB cable or headphones.
    • *
    • Headset required (sold separately)
    • **
    • USB cable required (included)


    • Rear-Facing Camera
    • 5 Megapixel HD Rear-Facing Autofocus Camera with LED Flash
    • Front-Facing Camera
    • VGA Front-Facing Camera
    • Camera Resolutions
    • Up to 2560 x 1920* (2304 x 1296 default)
    • Shot Mode
    • Choose from Normal, Panorama, Continuous Shot, Time Catch Shot™, and Sports
    • Focus Options
    • Choose Auto, Manual, or Face Tracking
    • Video Resolutions
    • Up to 1920 x 1080 FHD (30 fps)*
    • Pause & Resume Recording
    • Pause and start in record mode for one continuous video file.
    • Live Shot
    • Take still shots while recording video.
    • Voice Shutter
    • Use voice commands to capture a photo.
    • Live Effects
    • Select from a variety of visual effects when recording video.
    • *
    • Available only on rear-facing camera or camcorder


    • Knock On™
    • Double tap the screen to put your phone to sleep/wake it without picking it up or pressing the Power/Lock Key.
    • QSlide Function™
    • Overlay up to two windows with adjustable sizing and transparency on the primary screen for advanced and convenient multitasking.
    • Quick Memo™
    • Create and share personalized memos by taking screen captures and adding handwritten drawings or messages to compatible LG phones.
    • Guest Mode™
    • Create a separate unlock screen pattern for guests with pre-set access and restrictions.*
    • Smart Screen
    • Display setting keeps the screen active when device detects eye movement.
    • Privacy Keeper
    • Hide caller information for incoming calls; swipe screen to reveal information.
    • Quiet Mode
    • Specify times to turn off all sounds except alarm and media.
    • QuickButton
    • Set a shortcut to an application; default app is QuickMemo.
    • EasyHome
    • Show the dialer and other frequently used features right on the home screen for quick and easy access.
    • *
    • Some owner/personal content and information may still be accessible to a user in Guest Mode™.

What people are saying

Rated 3 out of 5 by from Out of a coma The only problem with these phones are the Bootlooping issues. Out of 2 of these phones that my family owned, they all got stuck with this. The only to fix it was to reinstall the software via LG's mobile support tool. That would only fix it temporarily though. Then, after a while, they both wouldn't go into download mode anymore which made it impossible to fix them. Because of that, the phones sat in my basement for the past like 3 years. Yesterday, I was bored and miraculously, they both were able to go into download mode again, and I was able to reinstall the software and factory reset them, which resulted in them working again. The experience with this phone has been a fun throwback to simpler times. The phone surprisingly still works great in 2021. It can run basic things like YouTube perfectly fine. It has lackluster app support, but other than that, it's completely usable. The only thing holding it back is the fear that it will stop working for another 3 years again. Boot-looping has been something that has plagued almost all of LG's older phones now, and I think it is a big reason why LG's prevalence has all but disappeared in the smartphone market. It's been sad to see LG mobile's death occur so slowly and quietly, but it was fun while it lasted I guess.
Date published: 2021-11-20
Rated 5 out of 5 by from Fantastic phone My first smartphone i have used for 4 years later on it became weak but it was amazing to have this phone.
Date published: 2020-09-18
Rated 4 out of 5 by from Really Decent Phone for the price This phone is a really cheap phone, yet it has held up surprisingly well. The build quality is still very good ,[I would say better than some 2018 flagships]. It is kind of slow on its original version of android (android 5.0.2), but I managed to get a custom rom on it fairly easily. Overall, this phone held up well over the years, and I would recommend it to someone who needs a phone that does its job and can have custom roms on it.
Date published: 2018-10-26
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Ask your questions. Share your answers.
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It's network state is showing 'out of service' what do I do.

Asked by: Joy Joseph
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