Oppo Reno 8 Z vs Samsung Galaxy S23 Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA
5G network

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA

5G band 1, 7, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA; SA/NSA/Sub6 - global version
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.5 Mbps
LTE speed

LTE-A (CA), 750 Mbps download, 211 Mbps upload

LTE-A (7CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic frame, glass back

Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
Height

159.9 mm

163.4 mm
Width

73.2 mm

78.1 mm
Thickness

7.7 mm

8.9 mm
Weight

181 g

234 g
Stylus

-

Yes
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IP68 (1.5m and 30 mins)
Dust proof

-

IP68
Build features

RGB ring lights around the cameras (notifications, charging progress)

Armor aluminum frame with tougher drop and scratch resistance
Colors

Black, Gold

Black, Blue, Cream, Green, Graphite, Lavender, Lime, Red, BMW M Edition

Display
Display type

AMOLED

Dynamic AMOLED 2X
Physical size

6.43 inches

6.8 inches
Resolution

1080 x 2400 pixels

1440 x 3088 pixels
Pixel density

409 ppi

500 ppi
Display colors

16777216

16777216
Protection

Schott Xensation Up

Scratch resistant, Corning Gorilla Glass Victus 2
Display features

430 nits (typ), 600 nits (HBM)

120Hz, HDR10+, 1750 nits (peak), Always-on display

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.2 GHz Kryo 660 Gold

Single-core 3.36 GHz Cortex-X3
CPU(second)

Hexa-core 1.7 GHz Kryo 660 Silver

dual-core 2.8 GHz Cortex-A715
CPU(third)

Dual-core 2.8 GHz Cortex-A710
CPU(fourth)

Triple-core 2.0 GHz Cortex-A510
Chipset

Qualcomm SM6375 Snapdragon 695 5G

Qualcomm SM8550-AC Snapdragon 8 Gen 2
GPU

Adreno 619

Adreno 740
Memory RAM

8 GB

8, 12 GB
Internal storage

128 GB

256, 512, 1024 GB
Memory card

microSD, microSDHC, microSDXC

No
Storage

UFS 2.2

UFS 4.0

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 64 MP, f/1.7 , 79˚ , 26 mm, 1/2" , 0.7 µm

(wide) , 200 MP, f/1.7 , 85˚ , 24 mm, 1/1.3" , 0.6 µm, 100x digital zoom
(macro) , 2 MP, f/2.4 , 1.75 µm

(periscope telephoto) , 10 MP, f/4.9 , 1.12 µm, 230 mm, 1/3.52" , 10x optical zoom
(depth) , 2 MP, f/2.4 , 1.75 µm

(telephoto) , 10 MP, f/2.4 , 1.12 µm, 70 mm, 1/3.52" , 3x optical zoom
(ultrawide) , 12 MP, f/2.2 , 120˚ , 13 mm, 1/2.55" , 1.4 µm
Primary camera resolution

9280 x 6920 pixels

-
Primary camera video

1080p@30fps, 720p@30/120fps, EIS

8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, 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

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

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 16 MP, f/2.4 , 27 mm, 1.0 µm

(wide) , 12 MP, f/2.2 , 26 mm, 80˚
Selfie camera resolution

4608 x 3456 pixels

-
Selfie camera features

Face unlock, HDR

Autofocus, HDR, phase detection autofocus
Selfie camera video

1080p@30fps

4K@30/60fps, 1080p@30fps

Connectivity
WLAN

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

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6E
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

-
WiFi Tri-Band

-

Yes
USB

Type-C 2.0

Type-C 3.2
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.3
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Ion
Battery capacity

4500 mAh

5000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC 2.0, VOOC 3.0, 33W (31% in 15 min, 100% in 63 min)

Yes, 45W (65% in 30 min)
Reverse charging

Yes

-
Wireless reverse charging

-

Yes, 4.5W
Fast wireless charging

-

Qi/PMA, 15W