Samsung Galaxy Watch3 vs Apple iPhone 18 Pro Max
Specs comparisonAdd 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.
| 2 of 3 devices The best value in a row is marked Best |
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| 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 |
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