Samsung Galaxy Watch3 vs Apple iPhone 18 Pro Max

Specs comparison

Add up to three devices side by side to compare their full specifications, features, performance, battery, and key differences in one place. Make informed decisions and find the device that best suits your needs and budget. Search for a device in an empty slot to add it.

WhatsApp Clear all

2 of 3 devices The best value in a row is marked Best
Samsung Samsung Galaxy Watch3 View Specs Change
Apple Apple iPhone 18 Pro Max View Specs Change
Brand Samsung Apple Empty slot
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) Empty slot
Announced 2020, August 05 2026, September 09 Empty slot
Released 2020, August 06 2026, September 18 Empty slot
Availability Available Available Empty slot
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G Empty slot
2G Bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 Empty slot
3G Bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 Empty slot
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 Empty slot
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 Empty slot
Speed HSPA, LTE HSPA, LTE, 5G Empty slot
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) Empty slot
Weight 53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best 249 g (8.78 oz) Empty slot
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) Empty slot
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) Empty slot
Protection / IP Rating IP68 dust/water resistant, 5ATMMIL-STD-810G compliant IP68 dust tight and water resistant (immersible up to 6m for 30 min) Empty slot
Display Type Super AMOLED LTPO Super Retina XDR OLED Empty slot
Display Size 1.4 inches 6.9 inches, 115.6 cm2 (~90.7% screen-to-body ratio) Best Empty slot
Resolution 360 x 360 pixels 1320 x 2868 pixels, 19.5:9 ratio Empty slot
Pixel Density ~364 ppi ~460 ppi Best Empty slot
Refresh Rate 60Hz 120Hz Best Empty slot
Peak Brightness — 1000 nits (typ), 1600 nits (HBM), 3000 nits (peak) Empty slot
Protection Corning Gorilla Glass DX Ceramic Shield 2Anti-reflective coating Empty slot
Display Features Always-On-Display — Empty slot
Operating System Tizen iOS Empty slot
OS Version 5.5 27 Empty slot
Chipset Exynos 9110 (10 nm) Apple A20 Pro (2 nm) Empty slot
CPU Dual-core 1.15 GHz Cortex-A53 Hexa-core (2x4.93 GHz + 4x2.64 GHz) Empty slot
GPU Mali-T720 Apple GPU (7-core graphics) Empty slot
RAM Options 1GB 12GB Empty slot
Storage Options 4GB / 1GB RAM8GB / 1GB RAM 256GB / 12GB RAM512GB / 12GB RAM1TB / 12GB RAM2TB / 12GB RAM Empty slot
Storage Type eMMC NVMe Empty slot
Card Slot No No Empty slot
Cameras — Triple camera Empty slot
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) Empty slot
Features — Dual-LED dual-tone flash, HDR (photo/panorama), Cinematic from regular video Empty slot
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. Empty slot
Cameras — Single camera Empty slot
Modules No Camera 18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAFSL 3D, (depth/biometrics sensor) Empty slot
Features — HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec., ProRes RAW, Apple Log 2 Empty slot
Video — 4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS Empty slot
Loudspeaker Yes Yes, with stereo speakers Empty slot
Audio Jack No No Empty slot
Audio Codec Not Available — Empty slot
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot Empty slot
Bluetooth 5.0, A2DP, LE 6.0, A2DP, LE Empty slot
GPS / Positioning GPS, GLONASS, GALILEO, BDS GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC Empty slot
NFC Yes Yes Empty slot
Radio No No Empty slot
USB No USB Type-C 3.2 Gen 2, DisplayPort Empty slot
Fingerprint No — Empty slot
Face Unlock No Face ID Empty slot
Sensors Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG) Accelerometer, gyro, proximity, compass, barometer Empty slot
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 Empty slot
Battery Type Li-Ion Market-dependent versions: Empty slot
Battery Capacity 340 mAh (45mm)247 mAh (41mm) · Li-Ion 5391 mAh - Nano SIM model· Li-Ion 5567 mAh - eSIM only model Best Empty slot
Wired Charging N/A PD3.2, AVS, 50% in 15 min Empty slot
Wireless Charging Wireless (WPC-based) 25W wireless MagSafe/Qi2, 50% in 30 min (15W - China) Empty slot
Reverse Wireless Charging N/A 4.5W reverse wired Empty slot
Colours Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium Black, Silver, Glacier, Burgundy Empty slot
Models SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U A3717, A3473, A3716, A3718 Empty slot

The matchups our readers check most. Tap any pair to see the full side-by-side specs comparison.