Screen size
1S (2020)6.2"
1S (2021)Winner: 6.5"+4.6%
Quick verdict
1S (2020) and 1S (2021) are close on the measured specs.
Measured wins
1S (2020)
3
spec wins
Ties
12
equal specs
1S (2021)
3
spec wins
Screen size
Technology
1S (2020)
GSM / HSPA / LTE
1S (2021)
GSM / HSPA / LTE
2G bands
1S (2020)
GSM 850 / 900 / 1800 / 1900
1S (2021)
GSM 850 / 900 / 1800 / 1900
3G bands
1S (2020)
HSDPA 850 / 900 / 1900 / 2100
1S (2021)
HSDPA 850 / 900 / 1900 / 2100
4G bands
1S (2020)
1, 3, 5, 7, 8, 20, 28, 38, 40
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
1S (2021)
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed
1S (2020)
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
1S (2021)
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
1S (2020)
2020, January. Released 2020, May
1S (2021)
2021, January 12
Status
1S (2020)
Discontinued
1S (2021)
Available. Released 2021, March 25
Dimensions
1S (2020)
158.7 x 74.6 x 8.5 mm (6.25 x 2.94 x 0.33 in)
1S (2021)
165.6 x 75.6 x 8.8 mm (6.52 x 2.98 x 0.35 in)
Weight
1S (2020)
165 g (5.82 oz)
1S (2021)
190 g (6.70 oz)
Build
1S (2020)
Glass front, plastic back, plastic frame
1S (2021)
Glass front, plastic back, plastic frame
SIM
1S (2020)
Nano-SIM + Nano-SIM
1S (2021)
· Nano-SIM· Nano-SIM + Nano-SIM
Type
1S (2020)
IPS LCD
1S (2021)
IPS LCD
Size
1S (2020)
6.22 inches, 96.6 cm2 (~81.6% screen-to-body ratio)
1S (2021)
6.52 inches, 102.6 cm2 (~82.0% screen-to-body ratio)
Resolution
1S (2020)
720 x 1520 pixels, 19:9 ratio (~270 ppi density)
1S (2021)
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
OS
1S (2020)
Android 10
1S (2021)
Android 11
Chipset
1S (2020)
Mediatek MT6762D Helio P22 (12 nm)
1S (2021)
Mediatek MT6762D Helio P22 (12 nm)
CPU
1S (2020)
Octa-core 1.8 GHz Cortex-A53
1S (2021)
Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)
GPU
1S (2020)
PowerVR GE8320
1S (2021)
PowerVR GE8320
Card slot
1S (2020)
microSDXC (uses shared SIM slot)
1S (2021)
microSDXC (uses shared SIM slot)
Internal
1S (2020)
32GB 3GB RAM
1S (2021)
32GB 3GB RAM
Other
1S (2020)
eMMC 5.1
1S (2021)
eMMC 5.1
Triple
1S (2020)
13 MP, f/1.8, (wide), 1/3.1", 1.12µm, AF 5 MP, f/2.2, (ultrawide/depth sensor), 1/5.0", 1.12µm 2 MP (macro)
1S (2021)
13 MP, f/2.0, 27mm (wide), 1/3.06", 1.12µm, PDAF 2 MP (macro) Auxiliary lens
Features
1S (2020)
LED flash, HDR, panorama
1S (2021)
LED flash, HDR, panorama
Video
1S (2020)
1080p@30fps
1S (2021)
1080p@30fps
Single
1S (2020)
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
1S (2021)
5 MP, f/2.2, 27mm (wide), 1/5.0", 1.12µm
Video
1S (2020)
1080p@30fps
1S (2021)
1080p@30fps
Features
1S (2020)
-
1S (2021)
HDR
Loudspeaker
1S (2020)
Yes
1S (2021)
Yes
3.5mm jack
1S (2020)
Yes
1S (2021)
Yes
WLAN
1S (2020)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
1S (2021)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
1S (2020)
5.0, A2DP, LE
1S (2021)
5.0, A2DP, LE
Positioning
1S (2020)
GPS
1S (2021)
GPS, GLONASS, GALILEO, BDS
NFC
1S (2020)
No
1S (2021)
No
Radio
1S (2020)
FM radio
1S (2021)
FM radio
USB
1S (2020)
microUSB 2.0
1S (2021)
microUSB 2.0, OTG
Sensors
1S (2020)
Fingerprint (rear-mounted), accelerometer, proximity, compass
1S (2021)
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
1S (2020)
Li-Po 4000 mAh
1S (2021)
Li-Po 4000 mAh
Charging
1S (2020)
-
1S (2021)
10W wired
Colors
1S (2020)
Agate Green, Power Grey
1S (2021)
Elegant Black, Twilight Blue
Models
1S (2020)
5028Y, 5028D, 5028D_EEA, 5028Y_EEA, 5028A
1S (2021)
6025H, 6025H_EEA, 6025D, 6025D_EEA
Price
1S (2020)
About 100 EUR
1S (2021)
About 130 EUR