vivo iQOO 15 vs S1

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

vivo iQOO 15Snapdragon 8 Elite Gen 5Change
vivo S1vivo S1Helio P65Change

Key differences

  1. Chipset: the iQOO 15 uses the Snapdragon 8 Elite Gen 5 (3 nm TSMC N3E), the S1 the Helio P65 (12 nm). The iQOO 15's fastest core runs at 4.61 GHz, the S1's at 2.00 GHz.
  2. Screen: 6.9 inches on the iQOO 15, 6.4 inches on the S1. Up to 144 Hz on the iQOO 15, 62 Hz on the S1.
  3. Battery: 7,000 mAh on the iQOO 15, 4,500 mAh on the S1.
  4. Main camera: 50.3 MP on the iQOO 15, 15.9 MP on the S1.

Chipset

Chipset
Snapdragon 8 Elite Gen 5Helio P65
Process
3 nm TSMC N3E12 nm
CPU
2× 4.61 GHz Oryon V3 Phoenix L
6× 3.63 GHz Oryon V3 Phoenix M2× 2.00 GHz Cortex-A75
6× 1.70 GHz Cortex-A55
Top CPU speed
4.61 GHz2.00 GHz
CPU cores
88
GPU
Adreno 840Mali-G52 MC2

Memory

Versions seen
12GB | 256GB6GB | 128GB
RAM type
LPDDR5XLPDDR4X
Storage type
UFS 4.1—

Display

Size
6.9 in6.4 in
Resolution
1440 × 31681080 × 2340
Pixel density
508 ppi404 ppi
Refresh rates
144 Hzalso 60, 90, 12062 Hz
HDR
Dolby Vision, HDR10, HDR10+, HLG—

Battery

Capacity
7,000 mAh4,500 mAh

Cameras

Back camera
50.3 MP8192 × 6144 · f/1.88 · 5.56 mm · OIS15.9 MP4608 × 3456 · f/1.78 · 4.05 mm
Front camera
32 MP6528 × 4896 · f/2.2 · 2.8 mm15.9 MP4608 × 3456 · f/2 · 3.84 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

Wi-Fi
Wi-Fi 7—
6 GHz Wi-Fi
Yes—
Bluetooth LE Audio
No—
NFC
YesNo
UWB
NoNo
USB host
YesYes

Software

Android
Android 16Android 9
Released with
Android 16Android 9
Widevine DRM
L1L3

Sensors

Sensors
56 sensors27 sensors
iQOO 15 full specs S1 full specs

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From phones shared with the Device Info app · updated November 2026 Hardware specs only. No personal data. Privacy