Samsung Galaxy Watch3 vs Apple iPhone 18 Pro Max

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Brand Samsung Apple
Versions SM-R855F, SM-R845F (Global, LTE model); SM-R855U, SM-R845U (USA, LTE model); SM-R850, SM-R840 (Wi-Fi only) A3717 (International); A3473 (USA); A3716 (Middle East, Canada, Mexico); A3718 (China)
Announced 2020, August 05 2026, September 09
Released 2020, August 06 2026, September 18
Availability Available Available
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
2G Bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Bands 1, 3, 5, 7, 8, 20 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 106 - A37171, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71 - A34731, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71, 106 - A37161, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 106 - A3718
5G Bands — 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A37171, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79, 258, 260, 261 SA/NSA/Sub6/mmWave - A34731, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79 SA/NSA/Sub6 - A37161, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3718
Speed HSPA, LTE HSPA, LTE, 5G
Dimensions 45mm: 45 x 46.2 x 11.1 mm41mm: 41 x 42.5 x 11.3 mm 163.4 x 78 x 8.8 mm (6.43 x 3.07 x 0.35 in)
Weight 53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best 249 g (8.78 oz)
Build Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel Glass front (Ceramic Shield 2), aluminum frame, aluminum back/ glass back (Ceramic Shield)
SIM eSIM (LTE models) · Nano-SIM + eSIM + eSIM (max 2 at a time; International)· eSIM + eSIM (8 or more, max 2 at a time; USA)· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time; China)
Protection / IP Rating IP68 dust/water resistant, 5ATMMIL-STD-810G compliant IP68 dust tight and water resistant (immersible up to 6m for 30 min)
Display Type Super AMOLED LTPO Super Retina XDR OLED
Display Size 1.4 inches 6.9 inches, 115.6 cm2 (~90.7% screen-to-body ratio) Best
Resolution 360 x 360 pixels 1320 x 2868 pixels, 19.5:9 ratio
Pixel Density ~364 ppi ~460 ppi Best
Refresh Rate 60Hz 120Hz Best
Peak Brightness — 1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)
Protection Corning Gorilla Glass DX Ceramic Shield 2Anti-reflective coating
Display Features Always-On-Display —
Operating System Tizen iOS
OS Version 5.5 27
Chipset Exynos 9110 (10 nm) Apple A20 Pro (2 nm)
CPU Dual-core 1.15 GHz Cortex-A53 Hexa-core (2x4.93 GHz + 4x2.64 GHz)
GPU Mali-T720 Apple GPU (7-core graphics)
RAM Options 1GB 12GB
Storage Options 4GB / 1GB RAM8GB / 1GB RAM 256GB / 12GB RAM512GB / 12GB RAM1TB / 12GB RAM2TB / 12GB RAM
Storage Type eMMC NVMe
Card Slot No No
Cameras — Triple camera
Modules No Camera 48 MP, f/1.5-4.0, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS (gen2)48 MP, f/2.8, 100mm (periscope telephoto), 1/2.55", 0.7µm, PDAF, 3D sensor‑shift OIS, 4x optical zoom48 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 0.7µm, PDAFTOF 3D LiDAR scanner (depth)
Features — Dual-LED dual-tone flash, HDR (photo/panorama), Cinematic from regular video
Video — 4K@24/25/30/60/100/120fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR (up to 120fps), ProRes, ProRes RAW (up to 120fps), Apple Log 2, 3D (spatial) video/audio, stereo sound rec.
Cameras — Single camera
Modules No Camera 18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAFSL 3D, (depth/biometrics sensor)
Features — HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec., ProRes RAW, Apple Log 2
Video — 4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS
Loudspeaker Yes Yes, with stereo speakers
Audio Jack No No
Audio Codec Not Available —
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Bluetooth 5.0, A2DP, LE 6.0, A2DP, LE
GPS / Positioning GPS, GLONASS, GALILEO, BDS GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
NFC Yes Yes
Radio No No
USB No USB Type-C 3.2 Gen 2, DisplayPort
Fingerprint No —
Face Unlock No Face ID
Sensors Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG) Accelerometer, gyro, proximity, compass, barometer
Other Features ECG certifiedBlood pressure monitorCompatible with standard 22mm (45mm) / 20mm (41mm) strapsSizes: 41mm, 45mm; Bluetooth and LTE versions Ultra Wideband (UWB) support (gen2 chip)Emergency SOS, Messages and Find My via satellite
Battery Type Li-Ion Market-dependent versions:
Battery Capacity 340 mAh (45mm)247 mAh (41mm) · Li-Ion 5391 mAh - Nano SIM model· Li-Ion 5567 mAh - eSIM only model Best
Wired Charging N/A PD3.2, AVS, 50% in 15 min
Wireless Charging Wireless (WPC-based) 25W wireless MagSafe/Qi2, 50% in 30 min (15W - China)
Reverse Wireless Charging N/A 4.5W reverse wired
Colours Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium Black, Silver, Glacier, Burgundy
Models SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U A3717, A3473, A3716, A3718