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InnoReviews

Ulefone Armor 28 Ultra vs Vivo S2

WINNER
Ulefone Armor 28 Ultra
61.6Inno Score
VS
Vivo S2
48.5Inno Score
55.2Performance28.9
53.7Display65.5
46.8Camera34.1
94.7Battery70.9
60Features57.3
6 spec wins — Ulefone Armor 28 Ultra6 spec wins — Vivo S2

InnoReviews verdict

Ulefone Armor 28 Ultra wins this phone face-off, 61.6 to 48.5, pulling ahead mainly in performance (+26) and battery (+24). Vivo S2 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Ulefone Armor 28 Ultra

  • Stronger performance score: 55 vs 29
  • Stronger camera score: 47 vs 34
  • Stronger battery score: 95 vs 71
  • 173% higher Wired charging: 120 W vs 44 W
  • 100% higher RAM (max): 16 GB vs 8 GB

Reasons to pick the Vivo S2

  • Stronger display score: 66 vs 54
  • 59% lower thickness: 8 mm vs 19.4 mm
  • 56% lower weight: 197 g vs 450 g
  • 36% higher Peak brightness: 3,000 nits vs 2,200 nits
  • 14% higher Pixel density: 449 ppi vs 395 ppi

Display

Display comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
Screen size6.67 ″6.83 ″+2%
Panel typeAMOLED3D Curved AMOLED
Resolution1080x24001260x2800
Pixel density395 ppi449 ppi+14%
Refresh rate120 Hz120 Hz
Peak brightness2,200 nits3,000 nits+36%
Screen-to-body—91.4 %

Performance

Performance comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
ChipsetMediaTek Dimensity 9300+MediaTek Dimensity 7360-Turbo
Geekbench 6 (single)2,158Top 29%—
Geekbench 6 (multi)7,082Top 22%—
RAM (max)16 GB+100%8 GB
Storage options1TB128/256GB
Storage typeUFS 4.0UFS 3.1

Camera

Camera comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
Main camera50 MP50 MP
Main aperturef/1.9f/1.8
Ultra-wide50 MP—
Max video8K@30fps—
Front camera50 MP+56%32 MP
OISNoNo

Battery

Battery comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
Capacity10,600 mAh+50%7,050 mAh
Wired charging120 W+173%44 W
Wireless charging50 W—

Design

Design comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
Weight450 g197 g+56%
Thickness19.4 mm8 mm+59%
IP ratingIP68/IP69KIP68/IP69
Frame material—Plastic

Connectivity

Connectivity comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 5
Bluetooth5.45.4
NFCYesNo
USBUSB-C 3.2 Gen 2USB-C 2.0
eSIMNoNo

Software

Software comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
OS at launchAndroid 14Android 16 (OriginOS 6)
OS update pledge—3 years

Audio

Audio comparison: Ulefone Armor 28 Ultra versus Vivo S2
SpecUlefone Armor 28 UltraVivo S2
Stereo speakersNoYes
3.5mm jackYesNo

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