Asus VivoBook S 15 (S5507) 15.6" Qualcomm Snapdragon X Elite (X1E-78-100) 3.4GHz / 16GB RAM / 1TB SSD specifications and in-depth review

Asus VivoBook S 15 (S5507) 15.6" Qualcomm Snapdragon X Elite (X1E-78-100) 3.4GHz / 16GB RAM / 1TB SSD

Manufacturer: Asus

The Asus VivoBook S 15 (S5507) is a 15.6-inch productivity laptop built around Qualcomm's Snapdragon X Elite (X1E-78-100) platform, pairing a 12-core processor clocked at 3.4GHz with 16GB of DDR5 memory. Weighing just 1,420g and measuring 14mm thick, it balances portability with a generous screen size, and its 120Hz OLED display delivers a 2880x1620 resolution at 211 ppi alongside a contrast ratio of 1,000,000:1 and 600 nits of typical brightness.

On the performance side, the laptop runs a 4nm chip with 1TB of NVMe SSD storage and a maximum memory bandwidth of 135 GB/s across eight memory channels. Connectivity includes Wi-Fi 7, Bluetooth 5.4, HDMI 2.1, two USB-A 3.2 Gen 1 ports, and a USB-C port, while the 70Wh battery is rated for up to 18 hours of use. Additional features include 3D facial recognition, Dolby Atmos stereo speakers, a dual-microphone setup, and support for up to three external displays.

Pros
  • The 15.6-inch OLED panel with a 2880x1620 resolution, 120Hz refresh rate, and 1,000,000:1 contrast ratio delivers sharp, detailed visuals with deep blacks suitable for sustained productivity use
  • At 1,420g and just 14mm thick, the chassis is notably slim and light for a 15.6-inch laptop, making it practical to carry daily
  • An 18-hour rated battery life backed by a 70Wh cell means the laptop can realistically get through a full workday and beyond without needing a power source nearby
  • Wi-Fi 7 support alongside Bluetooth 5.4 ensures the laptop is equipped with current-generation wireless standards for fast and stable connections
  • 3D facial recognition provides a hands-free login method without requiring a fingerprint scanner, adding convenience to the daily workflow
  • The 12-core CPU running at 3.4GHz paired with DDR5 RAM at 4224MHz and a PCIe 4 NVMe SSD offers a well-rounded set of components for demanding productivity tasks
Cons
  • With no Thunderbolt 3 or 4 ports and no USB 4 support, high-speed peripheral and external display options via USB-C are limited
  • The absence of an RJ45 Ethernet port means wired network connections are not possible without an adapter
  • No anti-reflection coating on the display may make the screen harder to read under bright or direct lighting conditions
  • The laptop lacks a fingerprint scanner, leaving 3D facial recognition as the sole biometric option, which can be less reliable in low-light conditions
  • There are no DisplayPort or mini DisplayPort outputs, restricting direct wired display connectivity to a single HDMI 2.1 port
Who is this for?

This laptop suits professionals and students who spend long hours working away from a desk, given its 18-hour battery life, slim 14mm profile, and 1,420g weight — all of which make sustained portable use genuinely practical. The OLED display with a 120Hz refresh rate and high pixel density is well-suited for content creators, writers, or analysts who rely on visual clarity and comfortable extended screen time. Its integrated 5G and LTE connectivity also makes it a strong fit for mobile workers who frequently operate outside of fixed office environments and need reliable on-the-go internet access.

Who is this NOT for?

Users who depend on a wide range of high-speed peripherals or external storage solutions will find the port selection limiting, as there are no Thunderbolt, USB 4, or DisplayPort outputs and no RJ45 port for wired networking. The laptop is also a poor match for those interested in gaming or GPU-intensive workloads, since the integrated Adreno X1 graphics do not support ray tracing or DLSS and are not designed for that category of tasks. Additionally, professionals who work regularly in brightly lit spaces may find the experience frustrating, as the panel lacks an anti-reflection coating, which can cause glare under direct or ambient lighting.

Design:

Type Productivity
weight 1420 g
Uses a fanless design
Has a backlit keyboard
volume 1113.728 cm³
width 352 mm
height 226 mm
thickness 14 mm
is weather-sealed (splashproof)
has a rugged build

The Asus VivoBook S 15 (S5507) is a productivity-category laptop with a slim 14mm thickness and a weight of 1,420g, giving it a reasonably compact footprint for a 15.6-inch machine — its dimensions measure 352mm wide by 226mm tall with a total volume of around 1,113.7 cm³. It comes with a backlit keyboard for comfortable use in low-light environments, though it does not employ a fanless design, a rugged build, or any weather-sealing.

Display:

screen size 15.6"
resolution 2880 x 1620 px
pixel density 211 ppi
Display type OLED/AMOLED
has a touch screen
brightness (typical) 600 nits
refresh rate 120Hz
contrast ratio 1000000:1
has anti-reflection coating
supported displays 3

The laptop features a 15.6-inch OLED/AMOLED panel with a resolution of 2880x1620 pixels at 211 ppi, delivering a sharp and detailed image across its surface. It runs at a 120Hz refresh rate and reaches 600 nits of typical brightness, while the 1,000,000:1 contrast ratio is characteristic of OLED technology. The display supports up to three connected screens simultaneously but does not include a touchscreen or an anti-reflection coating.

Performance:

RAM 16GB
RAM speed 4224 MHz
Uses flash storage
internal storage 1024GB
CPU speed 12 x 3.4 GHz
CPU threads 12 threads
Is an NVMe SSD
DirectX version DirectX 12
GPU clock speed 500 MHz
uses multithreading
maximum memory amount 64GB
DDR memory version 5
GPU turbo 1200 MHz
PCI Express (PCIe) version 4
semiconductor size 4 nm
Supports 64-bit

The processor runs twelve cores at 3.4GHz with twelve threads and multithreading support, all built on a 4nm semiconductor process and paired with 16GB of DDR5 RAM clocked at 4224MHz — expandable up to 64GB. Storage comes in the form of a 1024GB NVMe SSD over a PCIe 4 interface, while the integrated GPU operates at a base clock of 500MHz and boosts up to 1200MHz with DirectX 12 support. The system is fully 64-bit capable, and all memory and storage run on flash-based architecture with no mechanical components involved.

Benchmarks:

Connectivity:

USB 3.2 Gen 2 ports (USB-C) 0
USB 3.2 Gen 2 ports (USB-A) 0
USB 4 20Gbps ports 0
USB 4 40Gbps ports 0
Thunderbolt 4 ports 0
USB 3.2 Gen 1 ports (USB-C) 0
USB 3.2 Gen 1 ports (USB-A) 2
Thunderbolt 3 ports 0
has an HDMI output
Has USB Type-C
supports Wi-Fi
Wi-Fi version Wi-Fi 7 (802.11be), Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
has an external memory slot
Bluetooth version 5.4
RJ45 ports 0
HDMI ports 1
HDMI version HDMI 2.1
DisplayPort outputs 0
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

Wireless connectivity is handled by Wi-Fi 7 (802.11be) with backwards compatibility through Wi-Fi 6E, 6, 5, and 4, alongside Bluetooth 5.4 and AirPlay support. For wired connections, the laptop provides two USB-A 3.2 Gen 1 ports, one USB-C port, and a single HDMI 2.1 output, while an external memory card slot adds further storage flexibility. There are no Thunderbolt 3 or 4 ports, no USB 4 ports, no DisplayPort or mini DisplayPort outputs, and no RJ45 Ethernet port or VGA connector.

Battery:

Battery life 18 hours
battery size 70 Wh
Has sleep-and-charge USB ports
Has a MagSafe power adapter

The laptop is equipped with a 70Wh battery rated for up to 18 hours of use on a single charge, making it well-suited for extended work sessions away from a power outlet. It includes sleep-and-charge USB ports, allowing connected devices to be charged even when the laptop is powered off or in sleep mode. A MagSafe power adapter is not supported.

Features:

has stereo speakers
has a socket for a 3.5 mm audio jack
supports ray tracing
supports DLSS
has Dolby Atmos
Stylus included
Has a fingerprint scanner
number of microphones 2
Uses 3D facial recognition
has voice commands
has a front camera
Has S/PDIF Out port
has a gyroscope
has GPS
has an accelerometer
has a compass
Has an optical disc drive

Audio is handled by stereo speakers with Dolby Atmos support, complemented by a 3.5mm headset jack and a dual-microphone setup. The laptop includes a front camera paired with 3D facial recognition for biometric login, though there is no fingerprint scanner. It does not support ray tracing, DLSS, voice commands, or S/PDIF output, and comes without a stylus, optical disc drive, or motion/location sensors such as a gyroscope, accelerometer, compass, or GPS.

Miscellaneous:

clock multiplier 34
upload speed 3500 MBits/s
download speed 10000 MBits/s
GPU name Adreno X1
has 5G support
Thermal Design Power (TDP) 23W
Has TrustZone
Has NX bit
Has integrated LTE
maximum memory bandwidth 135 GB/s
memory channels 8
L2 cache 12 MB
Uses big.LITTLE technology
render output units (ROPs) 6
shading units 1536
Has integrated graphics

The integrated Adreno X1 GPU features 1,536 shading units and 6 render output units (ROPs), with a clock multiplier of 34 and a maximum memory bandwidth of 135 GB/s spread across 8 memory channels. The CPU has a TDP of 23W and a 12MB L2 cache, and does not use big.LITTLE architecture. On the cellular side, the chip includes integrated LTE and 5G support, with rated upload and download speeds of 3,500 Mbits/s and 10,000 Mbits/s respectively. Security features include TrustZone and NX bit support, both of which are active on this platform.

Final Verdict

The Asus VivoBook S 15 (S5507) makes a compelling case for users who prioritize portability and endurance in a productivity laptop, with its slim build, long-rated battery life, and capable 12-core Snapdragon X Elite platform working together in a coherent package. The 120Hz OLED display stands out as one of its most tangible day-to-day strengths, offering visual clarity and comfort that few screens at this size deliver. That said, its limited high-speed port selection and integrated-only graphics mean it is best suited to knowledge workers and mobile professionals rather than those with demanding peripheral or graphics requirements. Taken as a whole, the VivoBook S 15 is a well-defined productivity machine that excels within its intended scope and is worth serious consideration for users whose workflows align with its strengths.