AT&T Z998 vs Xiaomi Mi 11 Ultra

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

4.5 inches
6.8 inches

Resolution:

960 x 540 pixels, 245 PPI
3200 x 1440 pixels, 20:9 ratio, 515 PPI

Technology:

TFT
AMOLED

Screen-to-body:

64.00 %
91.24 %

Peak brightness:

1700 cd/m2 (nit)

Touchscreen:

Capacitive, Multi-touch

Features:

Ambient light sensor, Proximity sensor
120Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Additional display:

1.1 inches, 294 pixels 124 x, AMOLED, Touch screen: Yes, Capacitive

Hardware

System chip:

Qualcomm Snapdragon S4 Plus MSM8930
Qualcomm Snapdragon 888 SM8350

Processor:

Dual-core, 1200 MHz, Krait
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 305
Adreno 660

RAM:

1GB LPDDR2
8GB LPDDR5

Internal storage:

4GB
256GB (UFS 3.1), not expandable

Storage expansion:

microSDHC up to 32 GB

Device type:

Smartphone
Smartphone

OS:

Android (4.1)
Android (11), MIUI 12 UI

Battery

Capacity:

2070 mAh
5000 mAh

Type:

User replaceable
Li - Polymer, Not user replaceable

Charging:

Fast charging, Qi wireless charging, Reverse wireless charging

Max charge speed:

Wired: 67.0W; Wireless: 67.0W

Camera

Rear:

Single camera
Triple camera

Main camera:

5 MP
50 MP (OIS, Laser autofocus)

Specifications:

Aperture size: F1.9; Focal length: 24 mm; Sensor size: 1/1.12″; Pixel size: 1.4 μm

Second camera:

48 MP (Telephoto, Autofocus)

Specifications:

Optical zoom: 5.0x; Aperture size: F4.1; Focal Length: 120 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Third camera:

48 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Video recording:

1280x720 (HD)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (1920 fps), 1280x720 (HD) (1920 fps)

Front:

Yes
20 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

5.2 x 2.6 x 0.4 inches (132 x 66 x 10 mm)
6.47 x 2.94 x 0.33 inches (164.3 x 74.6 x 8.38 mm)

Weight:

4.8 oz (136.0 g)
8.25 oz (234.0 g)

Materials:

Back: Ceramic

Resistance:

Water, Dust; IP68

Biometrics:

2D Face unlock, In-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Black
Ceramic White, Ceramic Black

Cellular

5G:

n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n77, n78, n79, SA, NSA

LTE (FDD):

Bands 17(700 b), 4(AWS-1)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 28(700 APT), 32(1500 L-band), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+), 42(3500)

UMTS:

Bands 5(850), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

LTE, HSPA
HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes

SIM type:

Nano SIM

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker, Multiple speakers

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.0
5.2

Wi-Fi:

802.11 b, g, n; Hotspot
802.11 b, g, n, ac, ax (Wi-Fi 6); Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible)

Features:

Mass storage device, Charging
Charging, Mass storage device

Location:

GPS, A-GPS
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, GNSS, Dual-band positioning, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Compass
Accelerometer, Gyroscope, Compass

Other:

Tethering, Computer sync, OTA sync
NFC, Infrared

Hearing aid compatible:

M3, T4

Phone features

Notifications:

Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval:

Date approved:

Oct 20, 2013
Mar 31, 2021

FCC ID value:

Q78-Z998
2AFZZK1G

Measured SAR:

Head:

0.73 W/kg
0.84 W/kg

Body:

1.33 W/kg
0.46 W/kg

Simultaneous Transmission:

1.45 W/kg
1.59 W/kg

Wireless Router:

1.38 W/kg
0.74 W/kg

Availability

Officially announced:

Mar 29, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless