The Microsoft Lumia 640 LTE Dual SIM is a budget-focused device, powered by the Qualcomm MSM8926 Snapdragon 400 (28 nm), built for basic everyday tasks (2015).
2015 · Lower-mid-range · Microsoft Windows Phone 8.1
Overall
A
Performance
A
Display
A
Battery
A
Camera
B+
ⓘ Grades compare this device against others in its own market segment (Budget), not against every device on the site.
⚡ Quick Specs
Size5" · 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
ChipsetQualcomm MSM8926 Snapdragon 400 (28 nm)
RAM1GB
Storage8GB
Main Camera8 MP · LED flash
⚖️ Compare With
✓︎ Pros
✓5" IPS LCD display with accurate colours and wide viewing angles
✓Lightweight at 145g — easy to carry
✓3.5mm headphone jack for wired audio without adapters
⊗ Cons
✗Smaller 2,500 mAh battery — may need midday charging
✗Basic Qualcomm MSM8926 Snapdragon 400 (28 nm) for simple tasks only
✗Only 1GB RAM — apps may reload frequently
✗8 MP main camera — basic quality, limited for photography enthusiasts
⚠️ Not ideal for
Heavy usage daysGamingMultitaskingMultitasking
ℹ️ Overview
Status
Discontinued
Announced
2015, March. Released 2015, April
⚙️ Performance
Chipset
Qualcomm MSM8926 Snapdragon 400 (28 nm)
Entry-level — basic tasks only
CPU
Quad-core 1.2 GHz Cortex-A7
GPU
Adreno 305
OS
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
RAM
1GB
Apps may reload frequently
Storage
8GB
Memory Card
microSDXC
💻 Display
Size
5"
Resolution
720×1280
Sharpness
294 ppi
Adequate sharpness for daily use
Panel
IPS LCD
IPS: accurate colours, good brightness
Protection
Corning Gorilla Glass 3
📷 Camera
Main Camera
8 MP
Basic quality — limited flexibility
Main Video
1080p@30fps
Main Camera Features
LED flash
Selfie
1 MP
Selfie Video
720p
🔋 Battery
Capacity
2,500 mAh
May need midday charging with heavy use
Type
Li-Ion 2500 mAh, removable
📱 Design & Build
Weight
145g
Very light — comfortable for long use
Dimensions
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
SIM
Dual SIM (Micro-SIM, dual stand-by)
Colors
Glossy cyan, Orange, White, Matte black
Sensors
Accelerometer, proximity, compass
📶 Network
Technology
GSM / HSPA / LTE
Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
2G Bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Bands
HSDPA 850 / 900 / 1700 / 1900 / 2100
📡 Connectivity
WiFi
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
4.0, A2DP
NFC
Yes
GPS
GPS, GLONASS, BDS
USB
microUSB 2.0
🔊 Sound
3.5mm Jack
Yes
Loudspeaker
Yes
Radio
FM radio
❓ Frequently Asked Questions
No, the Microsoft Lumia 640 LTE Dual SIM does not support 5G — it supports GSM / HSPA / LTE.
Yes, the Microsoft Lumia 640 LTE Dual SIM has NFC for contactless payments and pairing.
Yes, the Microsoft Lumia 640 LTE Dual SIM supports microSDXC expandable storage.
Yes, the Microsoft Lumia 640 LTE Dual SIM supports dual SIM (Dual SIM (Micro-SIM, dual stand-by)).
Yes, the Microsoft Lumia 640 LTE Dual SIM has a 3.5mm headphone jack.
Speaker setup: Yes.
The Microsoft Lumia 640 LTE Dual SIM uses microUSB 2.0.
The Microsoft Lumia 640 LTE Dual SIM supports Wi-Fi 802.11 b/g/n, DLNA, hotspot.
The Microsoft Lumia 640 LTE Dual SIM has 4.0, A2DP.
