Sizometry

  • Home
  • Devices
  • Comparisons
  • Tool
  • Insights
  • Methodology

Data sources and measurement methods are explained in our Methodology.

PrivacyTermsContact

Product names, trademarks, and registered trademarks belong to their respective owners. Sizometry is an independent reference site and is not affiliated with or endorsed by the manufacturers shown.

© 2026 Sizometry. All rights reserved.

Galaxy Watch8 44mm vs OPPO Watch S

Device summary

Samsung

Galaxy Watch8 44mm

OPPO

OPPO Watch S

Full specifications

Full specifications
Basic information
Release year20252025
Starting price——
Display size1.5-inch1.5-inch
Dimensions43.7 mm × 46.0 mm × 8.6 mm45.0 mm × 45.0 mm × 8.9 mm
Weight34 g35 g
Front materialSapphire crystalGlass
Back material—PA + 55% fiberglass
Display
Display technologySuper AMOLEDAMOLED
Resolution480 × 480464 × 464
Peak brightness3000 nits3000 nits
ProtectionSapphire crystalGlass
Performance
ChipsetExynos W1000 (5 Core, 3nm)BES2800BP MCU
RAM2 GB—
Storage32 GB—
Expandable storageNoNo
Battery & charging
Battery capacity435 mAh—
Charging standardWireless charging (WPC) with Fast ChargingIntegrated magnetic charging cable
Battery typeLithium-ionLithium-ion
Typical capacity—339 mAh
Rated capacity—330 mAh
Connectivity
CellularLTE (optional models), Dual-frequency GPS (L1+L5)Dual-band GPS L1+L5 / multi-GNSS
Wi‑FiWi‑Fi 2.4GHz & 5GHz—
BluetoothBluetooth 5.3Bluetooth 5.2
NFCYesYes
Build & durability
FrameArmor aluminumStainless steel
Ingress protection5ATM / IP68 / MIL-STD-810H5 ATM / IP68

Basic information

Release year

Galaxy Watch8 44mm
2025
OPPO Watch S
2025

Starting price

Galaxy Watch8 44mm
—
OPPO Watch S
—

Display size

Galaxy Watch8 44mm
1.5-inch
OPPO Watch S
1.5-inch

Dimensions

Galaxy Watch8 44mm
43.7 mm × 46.0 mm × 8.6 mm
OPPO Watch S
45.0 mm × 45.0 mm × 8.9 mm

Weight

Galaxy Watch8 44mm
34 g
OPPO Watch S
35 g

Front material

Galaxy Watch8 44mm
Sapphire crystal
OPPO Watch S
Glass

Back material

Galaxy Watch8 44mm
—
OPPO Watch S
PA + 55% fiberglass

Display

Display technology

Galaxy Watch8 44mm
Super AMOLED
OPPO Watch S
AMOLED

Resolution

Galaxy Watch8 44mm
480 × 480
OPPO Watch S
464 × 464

Peak brightness

Galaxy Watch8 44mm
3000 nits
OPPO Watch S
3000 nits

Protection

Galaxy Watch8 44mm
Sapphire crystal
OPPO Watch S
Glass

Performance

Chipset

Galaxy Watch8 44mm
Exynos W1000 (5 Core, 3nm)
OPPO Watch S
BES2800BP MCU

RAM

Galaxy Watch8 44mm
2 GB
OPPO Watch S
—

Storage

Galaxy Watch8 44mm
32 GB
OPPO Watch S
—

Expandable storage

Galaxy Watch8 44mm
No
OPPO Watch S
No

Battery & charging

Battery capacity

Galaxy Watch8 44mm
435 mAh
OPPO Watch S
—

Charging standard

Galaxy Watch8 44mm
Wireless charging (WPC) with Fast Charging
OPPO Watch S
Integrated magnetic charging cable

Battery type

Galaxy Watch8 44mm
Lithium-ion
OPPO Watch S
Lithium-ion

Typical capacity

Galaxy Watch8 44mm
—
OPPO Watch S
339 mAh

Rated capacity

Galaxy Watch8 44mm
—
OPPO Watch S
330 mAh

Connectivity

Cellular

Galaxy Watch8 44mm
LTE (optional models), Dual-frequency GPS (L1+L5)
OPPO Watch S
Dual-band GPS L1+L5 / multi-GNSS

Wi‑Fi

Galaxy Watch8 44mm
Wi‑Fi 2.4GHz & 5GHz
OPPO Watch S
—

Bluetooth

Galaxy Watch8 44mm
Bluetooth 5.3
OPPO Watch S
Bluetooth 5.2

NFC

Galaxy Watch8 44mm
Yes
OPPO Watch S
Yes

Build & durability

Frame

Galaxy Watch8 44mm
Armor aluminum
OPPO Watch S
Stainless steel

Ingress protection

Galaxy Watch8 44mm
5ATM / IP68 / MIL-STD-810H
OPPO Watch S
5 ATM / IP68

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Width

    OPPO Watch S

    1.3 mm wider · minor difference

  • Height

    Galaxy Watch8 44mm

    1 mm taller · minor difference

  • Thickness

    Galaxy Watch8 44mm

    0.3 mm thinner · minor difference

  • Weight

    Very similar weight

View Galaxy Watch8 44mm detailsView OPPO Watch S details

Dimensions and weight are based on manufacturer specifications. Handling estimates are derived from physical measurements. Methodology