vivo iQOO Z9s vs Samsung Galaxy A55

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PHONES
Phone Names	vivo iQOO Z9s	Samsung Galaxy A55

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 3, 5, 8, 28, 38, 40, 41	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32, 38, 40, 41, 66
5G bands	1, 3, 5, 8, 28, 40, 77, 78 SA/NSA	1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed	HSPA, LTE, 5G	HSPA, LTE, 5G
Technology	GSM / HSPA / LTE / 5G	GSM / HSPA / LTE / 5G

Launch
Announced	2024, August 21	2024, March 11
Status	Available. Released 2024, August 23	Available. Released 2024, March 15

Body
Build	-	Glass front (Gorilla Glass Victus+), glass back (Gorilla Glass), aluminum frame
Dimensions	163.7 x 75 x 7.5 mm (6.44 x 2.95 x 0.30 in)	161.1 x 77.4 x 8.2 mm (6.34 x 3.05 x 0.32 in)
SIM	Nano-SIM + Nano-SIM	· Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight	180 g or 182 g (6.35 oz)	213 g (7.51 oz)

Display
Protection	Schott Xensation	Corning Gorilla Glass Victus+
Resolution	1080 x 2392 pixels (~388 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~390 ppi density)
Size	6.77 inches, 110.9 cm2 (~90.3% screen-to-body ratio)	6.6 inches, 106.9 cm2 (~85.8% screen-to-body ratio)
Type	AMOLED, 1B colors, 120Hz, HDR10+, 1800 nits (peak)	Super AMOLED, 120Hz, HDR10+, 1000 nits (HBM)

Platform
CPU	Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)	Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Chipset	Mediatek Dimensity 7300 (4 nm)	Exynos 1480 (4 nm)
GPU	Mali-G615 MC2	Xclipse 530
OS	Android 14, up to 2 major Android upgrades, Funtouch 14	Android 14, up to 4 major Android upgrades, One UI 6.1

Memory
Card slot	No	microSDXC (uses shared SIM slot)
Internal	128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM	128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 256GB 12GB RAM

Main Camera
Dual	50 MP, f/1.8, (wide), 1/1.95", 0.8µm, PDAF, OIS Auxiliary lens	-
Features	LED flash, panorama, HDR	LED flash, panorama, HDR
Triple	-	50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP (macro)
Video	4K@30/60fps, 1080p, gyro-EIS, OIS	4K@30fps, 1080p@30/60fps, gyro-EIS

Selfie camera
Single	16 MP, f/2.5, (wide), 1/3.0", 1.0µm	32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video	1080p@30fps	4K@30fps, 1080p@30/60fps

Sound
35mm jack	No	No
Loudspeaker	Yes, with stereo speakers	Yes, with stereo speakers

Comms
Bluetooth	5.4, A2DP, LE	5.3, A2DP, LE
NFC	No	Yes (market/region dependent)
Positioning	GPS, GALILEO, GLONASS, BDS, QZSS	GPS, GALILEO, GLONASS, BDS, QZSS
Radio	FM radio	No
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct

Features
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, optical), accelerometer, gyro, compass

Battery
Charging	44W wired 7.5W reverse wired	25W wired
Type	Li-Ion 5500 mAh	Li-Ion 5000 mAh

Misc
Colors	Titanium Matte, Onyx Green	Iceblue, Lilac, Navy, Lemon
Models	I2403	SM-A556V, SM-A556B, SM-A556B/DS, SM-A556E, SM-A556E/DS, SM-A5560
Price	About 220 EUR	$ 324.99 / £ 251.50 / € 319.99 / ₹ 23,998
SAR EU	-	0.68 W/kg (head)     1.04 W/kg (body)

OUR TESTS
Battery	-	Active use score 13:27h
Display	-	1010 nits max brightness (measured)
Loudspeaker	-	-25.7 LUFS (Very good)
Performance	-	AnTuTu: 635598 (v9), 726158 (v10) GeekBench: 3259 (v5), 3350 (v6) 3DMark: 1024 (Wild Life Extreme)