Category Breakdown
Lenovo K6 Note
Realme C21
Performance
60.468.1
Camera
19.129.9
Display
58.967.5
Battery
28.133.7
Build
75.667.9
Connectivity
42.348.0
Audio
8.98.9
Overall
36.346.2
Summary
- The Lenovo K6 Note features a 5.5-inch IPS LCD display with a resolution of 1080 x 1920 pixels, offering a sharper image compared to the Realme C21's larger 6.5-inch IPS LCD with a resolution of 720 x 1600 pixels.
- In terms of performance, the K6 Note is powered by a Qualcomm Snapdragon 430 chipset, while the C21 utilizes a MediaTek Helio G35, both with similar RAM configurations.
- The K6 Note has a superior rear camera at 16 MP compared to the C21's 13 MP, although both can record video at 1080p.
- Battery capacity favors the C21 with 5000 mAh versus the K6 Note's 4000 mAh, and it supports 10W charging.
- In terms of software, the K6 Note runs on Android 6.0, while the C21 operates on Android 10 with Realme UI, providing a more updated software experience.
- Build quality differs as well, with the K6 Note featuring an aluminum frame compared to the plastic frame of the C21.
Side-by-side Specification Comparison
Lenovo K6 Note
Realme C21
General
Release Date
2016
2021, March 05
Announced
2016
2021, March 05
Description
Also known as Lenovo K6 Plus in LATAM
N/A
Display
Size
5.5"
6.5"
Type
IPS LCD
IPS LCD, 400 nits (typ)
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
PPI
1080
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Qualcomm MSM8937 Snapdragon 430 (28 nm)
Mediatek MT6765G Helio G35 (12 nm)
CPU
Octa-core 1.4 GHz Cortex-A53
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
Adreno 505
PowerVR GE8320
Memory
32GB 3GB RAM, 32GB 4GB RAM
32GB 3GB RAM, 64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (dedicated slot)
Camera
Main Camera
16 MP, PDAF
13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
Main Camera Features
Dual-LED dual-tone flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
8 MP
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
Front Camera Features
N/A
HDR, panorama
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4000 mAh
5000 mAh
Battery Details
Li-Po 4000 mAh, non-removable
5000 mAh
Charging Details
N/A
10W wiredReverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
151 x 76 x 8.4 mm (5.94 x 2.99 x 0.33 in)
165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in)
Weight
169 g
190 g
Materials
Glass front, aluminum/plastic back, aluminum frame
Glass front, plastic back, plastic frame
Colors
Silver, Gold, Dark Grey
Cross Black, Cross Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n
Bluetooth
4.2, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 6.0 (Marshmallow)
Android 10, Realme UI
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass

