Vivo iQOO Z11i vs Xiaomi Redmi 15a

Verdict

The Vivo iQOO Z11i scores higher in 2 of 6 sections (design & durability and display), while the Xiaomi Redmi 15a leads in camera and connectivity & features; they are even on performance and battery.

The biggest difference is design & durability: 62 vs 33 points.

Choose the Vivo iQOO Z11i for design & durability and display; choose the Xiaomi Redmi 15a for camera and connectivity & features.

iQOO Z11i leads in 7 fields
Redmi 15a leads in 7 fields
22 ties

36 scored fields compared

Score by section

Section scores	iQOO Z11i	Redmi 15a
Overall
Performance	37	36
Camera	6	9
Battery	56	55
Display	53	48
Design & durability	62	33
Connectivity & features	41	44

Full specifications

Only differences

Performance

Chipset performance index: iQOO Z11i: 23/100; Redmi 15a: 30/100(Better)
Chipset: iQOO Z11i: Snapdragon 4 Gen 2; Redmi 15a: Unisoc T8300
RAM (max): iQOO Z11i: 8 GB(Better); Redmi 15a: 6 GB
Storage (max): iQOO Z11i: 256 GB(Better); Redmi 15a: 128 GB
Process node: iQOO Z11i: 4 nm; Redmi 15a: 6 nm

Camera

Main camera resolution: iQOO Z11i: 13 MP; Redmi 15a: 32 MP(Better)
Optical stabilization (OIS): iQOO Z11i: No; Redmi 15a: No
Ultra-wide camera: iQOO Z11i: No; Redmi 15a: No
Telephoto camera: iQOO Z11i: No; Redmi 15a: No
Periscope lens: iQOO Z11i: No; Redmi 15a: No
Optical zoom: iQOO Z11i: No; Redmi 15a: No
Video recording: iQOO Z11i: 1080p; Redmi 15a: 1080p
Front camera: iQOO Z11i: 5 MP; Redmi 15a: 8 MP(Better)
Front camera 4K video: iQOO Z11i: No; Redmi 15a: No

Battery

Battery capacity: iQOO Z11i: 6500 mAh(Better); Redmi 15a: 6300 mAh
Wired charging: iQOO Z11i: 15 W; Redmi 15a: 15 W
Wireless charging: iQOO Z11i: No; Redmi 15a: No
Reverse charging: iQOO Z11i: Yes; Redmi 15a: Yes
Reverse charging type: iQOO Z11i: Wired; Redmi 15a: Wired

Display

Screen size: iQOO Z11i: 6.74″; Redmi 15a: 6.9″
Panel type: iQOO Z11i: LCD; Redmi 15a: LCD
Refresh rate: iQOO Z11i: 120 Hz; Redmi 15a: 120 Hz
Pixel density: iQOO Z11i: 260 ppi(Better); Redmi 15a: 254 ppi
Peak brightness: iQOO Z11i: 1200 nits(Better); Redmi 15a: 800 nits
Resolution: iQOO Z11i: 720x1600; Redmi 15a: 720x1600

Design & durability

Weight: iQOO Z11i: 209 g; Redmi 15a: 210 g
Thickness: iQOO Z11i: 8.4 mm; Redmi 15a: 8.2 mm(Better)
Dust & water resistance: iQOO Z11i: IP65–IP67(Better); Redmi 15a: None
Back material: iQOO Z11i: Plastic; Redmi 15a: Unknown
Frame material: iQOO Z11i: Plastic; Redmi 15a: Unknown

Connectivity & features

5G: iQOO Z11i: Yes; Redmi 15a: Yes
Wi-Fi: iQOO Z11i: Wi-Fi 5; Redmi 15a: Wi-Fi 5
Bluetooth: iQOO Z11i: 5.1; Redmi 15a: 5.4(Better)
USB speed: iQOO Z11i: USB 2.0; Redmi 15a: USB 2.0
USB port: iQOO Z11i: USB-C 2.0; Redmi 15a: USB-C 2.0
DisplayPort output: iQOO Z11i: No; Redmi 15a: No
NFC: iQOO Z11i: No; Redmi 15a: No
eSIM: iQOO Z11i: No; Redmi 15a: No
Ultra-wideband (UWB): iQOO Z11i: No; Redmi 15a: No
Satellite connectivity: iQOO Z11i: No; Redmi 15a: No
Stereo speakers: iQOO Z11i: No; Redmi 15a: No
3.5 mm headphone jack: iQOO Z11i: Yes; Redmi 15a: Yes
Fingerprint reader: iQOO Z11i: Side-mounted; Redmi 15a: Side-mounted
3D face unlock: iQOO Z11i: No; Redmi 15a: No
Infrared blaster: iQOO Z11i: Yes(Better); Redmi 15a: No
FM radio: iQOO Z11i: No; Redmi 15a: Yes(Better)
microSD slot: iQOO Z11i: No; Redmi 15a: Yes(Better)
Card slot: iQOO Z11i: No; Redmi 15a: microSD

General

Operating system: iQOO Z11i: Android 16; Redmi 15a: Android 16
OS updates (major versions): iQOO Z11i: Unknown; Redmi 15a: 4
Launch price: iQOO Z11i: About 160 EUR; Redmi 15a: About 120 EUR
Year: iQOO Z11i: 2026; Redmi 15a: 2026

Show raw spec text

Original text from the source spec sheet, for reference.

—	iQOO Z11i	Redmi 15a
Network
Technology	GSM / HSPA / LTE / 5G	GSM / HSPA / LTE / 5G
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 2100
4G bands	1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41, 66	1, 3, 5, 8, 28, 40, 41
5G bands	1, 3, 5, 8, 28, 38, 40, 41, 77 SA/NSA	1, 3, 5, 8, 28, 40, 41, 78 SA/NSA
Speed	HSPA, LTE, 5G	HSPA, LTE, 5G
Launch
Announced	2026, April 06	2026, March 27
Status	Available. Released 2026, April 06	Available. Released 2026, April 03
Body
Dimensions	167.4 x 77.1 x 8.4 mm (6.59 x 3.04 x 0.33 in)	171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight	209 g (7.37 oz)	210 g (7.41 oz)
Build	Glass front, plastic frame, plastic back	–
SIM	Nano-SIM + Nano-SIM IP65 dust tight and water resistant (low pressure water jets)	Nano-SIM + Nano-SIM Dust and splash resistant
Display
Type	IPS LCD, 120Hz, 1200 nits (HBM)	IPS LCD, 120Hz, 800 nits (peak)
Size	6.74 inches, 109.7 cm2 (~85.0% screen-to-body ratio)	6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution	720 x 1600 pixels, 20:9 ratio (~260 ppi density)	720 x 1600 pixels, 20:9 ratio (~254 ppi density)
Platform
OS	Android 16, OriginOS 6	Android 16, HyperOS 3, up to 4 major OS updates
Chipset	Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)	Unisoc T8300 (6 nm)
CPU	Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)	Octa-core (2x2.2 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU	Adreno 613	Mali-G57 MC2
Memory
Card slot	No	microSDXC (dedicated slot)
Internal	128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM UFS 3.1	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM UFS 2.2
Main Camera
Single	13 MP, f/2.2, (wide), AF	–
Features	LED flash, HDR, panorama	LED flash, HDR
Video	1080p@30fps	1080p@30fps
Dual	–	32 MP, f/2.0, (wide), 1.12µm, AF Auxiliary lens
Selfie camera
Single	5 MP, f/2.2, (wide)	8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Video	1080p@30fps	1080p@30fps
Features	–	HDR
Sound
Loudspeaker	Yes	Yes
3.5mm jack	Yes	Yes
Comms
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band	Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth	5.1, A2DP, aptX Adaptive	5.4, A2DP, LE
Positioning	GPS, GALILEO, GLONASS, BDS, QZSS	GPS, GLONASS, GALILEO, BDS
NFC	No	No
Infrared port	Yes	–
Radio	No	FM radio, recording
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
Features
Sensors	Fingerprint (side-mounted), accelerometer, proximity, compass	Fingerprint (side-mounted), accelerometer, compass Virtual proximity sensing
Battery
Type	6500 mAh	6300 mAh
Charging	15W wired Reverse wired	15W wired 7.5W reverse wired
Misc
Colors	Dark Blue, Light Blue, Gold	Black, Blue, Purple
Models	V2559UA	–
Price	About 160 EUR	About 120 EUR