Samsung Galaxy A8 (2018) vs Xiaomi 17 Ultra

Compared 2 smartphones : Samsung Galaxy A8 (2018) Manufactured in January, 2018, with display 5.6 with chipsetSamsung Exynos 7 Octa 7885, vs Xiaomi 17 Ultra, Manufactured in December, 2025 with chipsetQualcomm Snapdragon 8 Elite Gen 5. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy A8 (2018)
  • Higher pixel density: 441ppi
  • Lighter design: 172g vs 224g
Reasons to choose Xiaomi 17 Ultra
  • Larger display: 6.9in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 6800mAh vs 3000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port
  • Built-in eSIM
  • Includes charger

Versions

Available versions and configurations
Memory Options - 4/32 GB
- 4/64 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Samsung Galaxy A8 (2018) and Xiaomi 17 Ultra
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 5.6 in 6.9 in
Resolution 1080x2220 pixels 1200x2608 pixels
Aspect ratio 18.5:9 19.5:9
Pixel density 441 ppi 416 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 390 nits 1200 nits
HDR support No Yes, Dolby Vision
Screen-to-body ratio 75.5 % 92.4 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy A8 (2018)
586 nits
Xiaomi 17 Ultra
n/a
PWM (Flicker)242 Hzn/a
Response time4.6 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 149.2 mm (5.87 in) 162.9 mm (6.41 in)
Width 70.6 mm (2.78 in) 77.6 mm (3.06 in)
Thickness 8.4 mm (0.33 in) 8.29 mm (0.33 in)
Weight 172 g (6.07 oz) 224 g (7.9 oz)
Water resistance IP68 IP69
Cooling system n/a Vapor chamber
Back panel Glass Eco Leather
Frame Metal Metal
Colors - Black
- Gold
- Blue
- White
- Black
- Green
- Purple
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Samsung Galaxy A8 (2018)
75.5 %
Xiaomi 17 Ultra
92.4 %

Performance

Testing Samsung Galaxy A8 (2018) and Xiaomi 17 Ultra In benchmarks
Processor
Chipset Samsung Exynos 7 Octa 7885 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2200 MHz 4610 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.6 (Cortex-A53)
- 2/2.2 (Cortex-A73)
6/3.63 ()
Process Samsung TSMC
Transistor Size 14 nm 3 nm
Neural Processor No Hexagon
Graphics Mali-G71 MP2 Adreno 840
GPU Cores 32 1536
GPU Frequency 770 MHz 1200 MHz
FLOPS 70.4 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A8 (2018)
n/a
Xiaomi 17 Ultra
3510
Geekbench 6 (Multi-Core)
Samsung Galaxy A8 (2018)
n/a
Xiaomi 17 Ultra
10993
Geekbench 6 (Single-Core)n/a3510
Geekbench 6 (Multi-Core)n/a10993
AnTuTu 10
AnTuTu 10
Samsung Galaxy A8 (2018)
202681
Xiaomi 17 Ultra
3963774
CPU736731198653
GPU266571458267
Memory50080501472
UX52271805382
NanoReview Score2026813963774

Memory

RAM
RAM Size 4 GB 12 GB
Memory Type LPDDR4 LPDDR5X
Memory Frequency 1333 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 32 GB
- 64 GB
512 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 7.1.1 (Upgradeable to Android 9) Android 16
UI Skin One UI 2.0 HyperOS 3

Battery

Volume 3000 mAh 6800 mAh
Max Charging Power 18 W 90 W
Battery Type Li-ion Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (50 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes Samsung Adaptive Fast Charge (50% in 30 min) Yes
Full Charge Time 1:35 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A8 (2018)
17:10
Xiaomi 17 Ultra
n/a
Web Browsing06:38 hn/a
Video Playback11:19 hn/a
Games04:20 hn/a
Standby Mode80 hn/a

Main camera

Matrix 16 MP 50 MP
Photo resolution 4920x3264 pixels 8192x6144 pixels
Zoom Digital Optical, 4.3x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
Slow Motion No 1920 fps (720p)
Wide-angle lens n/a 115 °
Lenses count Standard: 16 MP Standard: 50 MP
Telephoto: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix16 MP50 MP
Aperturef/1.7f/1.7
Focal length26 mm23 mm
SensorSamsung S5K2P6SXn/a
Sensor size1/2.81/1 (1)
Pixel size1.12 μm1.6 μm
AutofocusPhase autofocusLaser autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a200 MP
Aperturen/af/2.4 - 3.0
Focal lengthn/a100 mm
Sensor sizen/a1/1.4 (0.71)
Pixel sizen/a0.56 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.2
Focal lengthn/a14 mm
Sensorn/aOmniVision OV50M40
Sensor sizen/a1/2.88 (0.35)
Pixel sizen/a0.61 μm
Stabilizationn/aDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy A8 (2018)
82
Xiaomi 17 Ultra
n/a
Video quality
Samsung Galaxy A8 (2018)
74
Xiaomi 17 Ultra
n/a
Overall camera score
Samsung Galaxy A8 (2018)
79
Xiaomi 17 Ultra
n/a

Front camera

Matrix 16 MP 50 MP
Photo resolution 4608x3456 pixels 8192x6144 pixels
Aperture f/1.9 f/2.2
Focal length 27 mm n/a
Sensor Samsung S5K3P8SP CMOS
Sensor size 1/3.1 1/2.88 (0.35)
Pixel size 1 μm 0.61 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.4
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 850, GSM 900, GSM 1800, GSM 1900GSM B2 / B3 / B5 / B8
3G BandsHSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
LTE Bands*LTE (B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66/B71)
LTE category11n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy A8 (2018)
85 dB
Xiaomi 17 Ultra
n/a

Other

Class Mid-range Flagship
Announced December, 2017 yr December, 2025 yr
Release Date January, 2018 yr December, 2025 yr
Launch Price ($) 480 n/a
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 17 Ultra the clear winner in this comparison.

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