LG Quantum smartphone

Photo: MicrosoftPDC via Wikimedia Commons (CC BY 2.0)

LG

LG Quantum

November 2010 6/10 Rating Updated
In brief: The LG Quantum, also known as the Optimus 7Q or C900, was a slider smartphone launched in November 2010, notable for being one of the first devices to run Microsoft's Windows Phone 7 operating system. It featured a physical slide-out QWERTY keyboard, a 3.5-inch display, and was powered by a 1 GHz Snapdragon processor.
Display3.5-inch TFT, 480 x 800 pixels
ChipsetQualcomm Snapdragon S1
Main Camera5 MP with autofocus and LED flash
BatteryRemovable 1500 mAh Li-Ion
Starting from $45

💰 LG Quantum Price

The LG Quantum lowest price is $45, based on current retailer listings.

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📌 Full Specifications

Display

TypeTFT capacitive touchscreen
Size3.5 inches
Resolution480 x 800 pixels

Platform

OSMicrosoft Windows Phone 7, upgradable to 7.5 Mango, 7.8
ChipsetQualcomm QSD8250 Snapdragon S1
CPU1 GHz Scorpion
GPUAdreno 200

Memory

Card slotNo
Internal16 GB storage, 512 MB RAM, 512 MB ROM

Main Camera

Single5 MP, autofocus
FeaturesLED flash
Video720p@24fps

Selfie Camera

SingleNo

Battery

TypeRemovable Li-Ion 1500 mAh
Stand-byUp to 350 h
Talk timeUp to 6 h

Body

Dimensions119.5 x 59.5 x 15.2 mm (4.70 x 2.34 x 0.60 in)
Weight176 g (6.21 oz)
KeyboardSlide-out QWERTY keyboard
SIMMini-SIM

Comms

WLANWi-Fi 802.11 b/g/n, DLNA
Bluetooth2.1, A2DP
PositioningGPS, A-GPS
RadioStereo FM radio
USBmicroUSB 2.0

Launch

Announced2010, October
Released2010, November

⚖ Pros & Cons

Pros

  • Excellent physical QWERTY keyboard for messaging
  • Solid hardware and build quality
  • Smooth performance for its time with 1GHz Snapdragon processor
  • DLNA support for wireless media sharing
  • User-replaceable battery

Cons

  • Smaller display compared to some contemporaries
  • No front-facing camera
  • No expandable storage (no SD card slot)
  • Heavier and bulkier design
  • Windows Phone 7 ecosystem was limited and eventually discontinued
  • Camera performance could be inconsistent, especially indoors
★ Our Verdict

The LG Quantum offered a unique physical keyboard and solid performance for a Windows Phone 7 device, but its smaller screen, lack of expandable storage, and bulkier design were notable compromises.

The LG Quantum is a vintage smartphone from 2010, primarily of interest to collectors or enthusiasts of early Windows Phone devices and physical QWERTY keyboards. It runs an outdated operating system (Windows Phone 7) which is no longer supported, meaning modern apps and services will not function. Do not consider this phone for daily use, as it lacks essential features, security updates, and app compatibility for contemporary mobile needs. If you are looking for a functional smartphone, explore current models from major brands like Apple, Samsung, or Google that offer modern operating systems and robust app ecosystems. For those seeking a nostalgic experience or a piece of mobile history, ensure any purchase is for display or light, offline use only, and verify the battery condition as replacements may be scarce.

Reviewed by the infozme.com Editorial Team — see how we research & rate phones.

📦 In The Box & Warranty

  • LG Quantum smartphone
  • Removable 1500 mAh battery
  • Wall charger
  • MicroUSB cable
  • Wired headset
  • User manual

Standard manufacturer's warranty at the time of purchase.

❓ Questions & Answers

What operating system does the LG Quantum run?

The LG Quantum runs Microsoft's Windows Phone 7 operating system, which was upgradable to Windows Phone 7.5 Mango and 7.8.

Does the LG Quantum have a physical keyboard?

Yes, the LG Quantum is notable for its physical slide-out QWERTY keyboard, making it a popular choice for messaging enthusiasts.

When was the LG Quantum released?

The LG Quantum was announced in October 2010 and released in November 2010.

Can I still use the LG Quantum today?

While the LG Quantum can still power on, its Windows Phone 7 operating system is obsolete and no longer supported, meaning it cannot run modern apps or access most current online services. It is primarily suitable for collectors.

What are the main camera specifications of the LG Quantum?

The LG Quantum features a 5-megapixel main camera with autofocus and an LED flash, capable of recording video at 720p resolution.

Does the LG Quantum have expandable storage?

No, the LG Quantum does not have a card slot for expandable storage; it comes with 16 GB of internal storage.