BLU S1
#4540
HTC Desire 820s dual sim
#4670Category Breakdown
BLU S1
HTC Desire 820s dual sim
Performance
60.360.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
70.870.8
Overall
56.456.4
Summary
- The BLU S1 features a 5.2-inch IPS LCD display with a resolution of 720 x 1280 pixels, while the HTC Desire 820s has a larger 5.5-inch IPS LCD with the same resolution but slightly lower pixel density.
- In terms of performance, the BLU S1 is powered by a Mediatek MT6750 chipset, whereas the HTC Desire 820s uses the more advanced Mediatek MT6752, offering a higher CPU clock speed.
- Both devices have a 13 MP rear camera with 1080p video recording, but the HTC model benefits from autofocus and a superior 8 MP front camera compared to the 5 MP on the BLU.
- The BLU S1 has a 2800 mAh battery, slightly larger than the HTC's 2600 mAh, but both lack fast or wireless charging.
- Software-wise, the BLU runs Android 7.0 Nougat, while the HTC operates on an older Android 4.4.4 KitKat with Sense UI 6, which may affect the user experience and app compatibility.
Side-by-side Specification Comparison
BLU S1
HTC Desire 820s dual sim
General
Release Date
2017
2015
Announced
2017
2015
Description
N/A
N/A
Display
Size
5.2"
5.5"
Type
IPS LCD
IPS LCD,
Resolution
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6750 (28 nm)
Mediatek MT6752 (28 nm)
CPU
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Octa-core 1.7 GHz Cortex-A53
GPU
Mali-T860MP2
Mali-T760MP2
Memory
16GB 2GB RAM
16GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP
13 MP, AF
Front Camera
5 MP
8 MP
Front Camera Details
5 MP
8 MP
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
2800 mAh
2600 mAh
Battery Details
Li-Po 2800 mAh, non-removable
Li-Po 2600 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
147.3 x 72.8 x 8.4 mm (5.80 x 2.87 x 0.33 in)
157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in)
Weight
137 g
155 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, Gold
Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tuxedo Gray
Foldable
✗
✗
Connectivity
SIM
Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/11.5 Mbps, LTE (2CA) Cat6 300/50 Mbps
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
4.0, A2DP
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS
Software
Operating System
Android 7.0 (Nougat)
Android 4.4.4 (KitKat), Sense UI 6
OS Version
Android 7.0 (Nougat)
Android 4.4.4 (KitKat), Sense UI 6
Security
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (front-mounted), accelerometer, proximity, compass
Accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
Yes