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InnoReviews

OPPO K13x 5G vs Ulefone Armor 28 Ultra

OPPO K13x 5G
37.3Inno Score
VS
WINNER
Ulefone Armor 28 Ultra
61.6Inno Score
21.8Performance55.2
45.2Display53.7
29Camera46.8
61.9Battery94.7
36Features60
2 spec wins — OPPO K13x 5G8 spec wins — Ulefone Armor 28 Ultra

InnoReviews verdict

Ulefone Armor 28 Ultra wins this phone face-off, 61.6 to 37.3, pulling ahead mainly in performance (+33) and battery (+33). OPPO K13x 5G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO K13x 5G

  • 59% lower thickness: 7.9 mm vs 19.4 mm
  • 57% lower weight: 194 g vs 450 g

Reasons to pick the Ulefone Armor 28 Ultra

  • Stronger performance score: 55 vs 22
  • Stronger display score: 54 vs 45
  • Stronger camera score: 47 vs 29
  • Stronger battery score: 95 vs 62
  • Stronger features score: 60 vs 36

Display

Display comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
Screen size6.67 ″6.67 ″
Panel typeIPS LCDAMOLED
Resolution1604x7201080x2400
Pixel density264 ppi395 ppi+50%
Refresh rate120 Hz120 Hz
Peak brightness1,000 nits2,200 nits+120%
Screen-to-body89.9 %—

Performance

Performance comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
ChipsetMediaTek Dimensity 6300MediaTek Dimensity 9300+
Geekbench 6 (single)785Bottom 19%2,158+175%Top 29%
Geekbench 6 (multi)1,984Bottom 16%7,082+257%Top 22%
RAM (max)8 GB16 GB+100%
Storage options128GB1TB
Storage typeUFS 2.2UFS 4.0

Camera

Camera comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
Main camera50 MP50 MP
Main aperturef/1.8f/1.9
Ultra-wide—50 MP
Max video1080p@60fps8K@30fps
Front camera8 MP50 MP+525%
OISNoNo

Battery

Battery comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
Capacity6,000 mAh10,600 mAh+77%
Wired charging45 W120 W+167%
Wireless charging—50 W

Design

Design comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
Weight194 g+57%450 g
Thickness7.9 mm+59%19.4 mm
IP ratingIP65IP68/IP69K
Frame materialPlastic—

Connectivity

Connectivity comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth5.45.4
NFC—Yes
USBUSB-CUSB-C 3.2 Gen 2
eSIM—No

Software

Software comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
OS at launchAndroid 15 (ColorOS 15)Android 14
OS update pledge2 years—

Audio

Audio comparison: OPPO K13x 5G versus Ulefone Armor 28 Ultra
SpecOPPO K13x 5GUlefone Armor 28 Ultra
Stereo speakers—No
3.5mm jackYesYes

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