Realme 5i vs vivo S15

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 1700(AWS), 2100; CDMA2000 1x
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (2CA) Cat12, 603 Mbps download, 102 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

AMOLED
Physical size

6.52 inches

6.62 inches
Resolution

720 x 1600 pixels

1080 x 2400 pixels
Pixel density

269 ppi

398 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 3+

Scratch resistant, 2.5D curved glass screen
Multitouch

Yes

-
Display features

-

120Hz, HDR10+, 1300 nits (peak)

Main camera
Camera type

Quad

Triple
Main camera

12 MP, f/1.8 , 1/2.9" , 1.25 µm

64 MP, f/1.9 , 1/1.72" , (wide) , 25 mm
8 MP, f/2.3 , 13 mm

8 MP, f/2.2 , 16 mm, (ultrawide) , 120˚
2 MP, f/2.4 , 1/5" , 1.75 µm

2 MP, f/2.4 , (macro)
2 MP, f/2.4
Primary camera resolution

3968 x 2976 pixels

9280 x 6920 pixels
Primary camera video

2160p@30fps, 1080p@30fps, gyro-EIS

4K@30fps, 1080p@30fps
Primary camera flash

dual-LED flash

LED flash
Camera features

Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus, super night scape 2.0

Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Selfie camera
Selfie camera type

-

Single
Selfie camera

8 MP, f/2

32 MP, f/2.0 , (wide)
Selfie camera features

-

Face unlock, autofocus, HDR, face detection, panorama, geotagging, digital image stabilization
Selfie camera video

1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth HID

Yes

-
bluetooth LE

Yes

Yes
Bluetooth EDR

Yes

-
Bluetooth AptX

-

aptX HD, aptX Adaptive
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes