Apple iPhone 18 vs Samsung Galaxy S21 Ultra
Here you can compare Apple iPhone 18 and Samsung Galaxy S21 Ultra. Comparing Apple iPhone 18 vs Samsung Galaxy S21 Ultra on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Apple iPhone 18 stands against Samsung Galaxy S21 Ultra and which one should you buy The current lowest price found for Apple iPhone 18 is $799 and for Samsung Galaxy S21 Ultra is $907.88. The details of both of these products were last updated on Aug 19, 2026.
| Specification | Apple iPhone 18 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Battery | Li-ion Battery | 5000 mAh, Li-Po Battery |
| Rear Camera | 48 MP ƒ/1.6 (Wide Angle) 48 MP ƒ/2.2 (Ultra Wide) | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| Internal Memory | 256 GB | 256 GB |
| CPU | Hexa Core Processor | 2.9 GHz, Octa Core Processor |
| Display | 6.31 inches, 1206 x 2622 pixels, 120 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Price | $799 | $907.88 |
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Overview
| Specs Score | 81 / 100 | 94 / 100 Better Specs |
| Display Size | 6.31 in | 6.8 in Bigger Display |
| Display Resolution | 1206 x 2622 pixels | 1440 x 3200 pixels Better Resolution |
| CPU Clock Speed | 2.9 GHz Faster Clock Speed | |
| CPU Cores | Hexa Core | Octa Core More CPU Cores |
| Rear Camera | 48 MP + 48 MP Dual | 108 MP Quad Better Camera Resolution |
| Front Camera | 24 MP | 40 MP Better Front Camera Resolution |
| Weight | 227 g Lighter | |
| Thickness | 8.9 mm Slimmer | |
| Battery | 5000 mAh Bigger Battery | |
| Unique Features | No No | Fingerprint Sensor Reverse Charging |
General
| Model | iPhone 18 | Galaxy S21 Ultra 5G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | eSIM+eSIM SIM | Nano+Nano SIM |
| eSIM Support | Yes | |
| Device Type | Smartphone | Smartphone |
| Release Date | September 09, 2026 (Expected) | January 14, 2021 |
Design
| Dimensions | 75.6 x 165.1 x 8.9 mm | |
| Weight | 227 g |
Display
| Type | Color OLED Screen (1B Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.31 inches, 1206 x 2622 pixels, 120 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 460 PPI | ~ 515 PPI |
| Screen to Body Ratio | ~ 90.1% | ~ 89.8% |
| Glass Type | Ceramic Shield 3 | Corning Gorilla Glass Victus |
| Brightness | 1,000 Nits Max Brightness (Typical); 1,600 Nits Peak Brightness (Hdr); 3,000 Nits Peak Brightness (Outdoor); 1 Nit Minimum Brightness | |
| HDR Support | Yes, HDR10+ | |
| Features | Always-on Display, HDR10+, Curved Display | |
| Notch | Yes, Small Notch | Yes, Punch Hole |
Memory
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 256 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | FDD-5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n30, n66, n70, n75), TDD-5G NR (Bands n38, n40, n41, n48, n53, n77, n78, n79) | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | |
| Bluetooth | Yes, v6.0, A2DP, LE | Yes, v5.2, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
Extra
| GPS | Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC) Digital compass Wi‑Fi Cellular iBeacon micro-location | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | No | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Face Id, Barometer, High Dynamic Range Gyro, High-g Accelerometer, Proximity Sensor, Dual Ambient Light Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| AI Features | Apple Intelligence | |
| Water Resistance | Yes, 6 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP69 | IP68 |
| Dust Resistant | Yes | Yes |
Camera
| Rear Camera | 48 MP ƒ/1.6 (Wide Angle) 48 MP ƒ/2.2 (Ultra Wide) | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| OIS | Yes | |
| Auto Focus | Yes, Phase Detection autofocus | Yes |
| Features | Auto-HDR, Panorama | |
| Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 24 MP ƒ/1.9 (Wide Angle) Retina Flash | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus |
| Front Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
Technical
| OS | iOS v27 | Android v10 |
| Chipset | Apple A20 | Samsung Exynos 2100 |
| CPU | Hexa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | |
| Fabrication Node | 3nm | |
| GPU | Apple GPU (5-core graphics) | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | AAC‑LC, HE‑AAC, HE‑AAC v2, Protected AAC, MP3, Linear PCM, Apple Lossless, FLAC, Dolby Digital (AC‑3), Dolby Digital Plus (E‑AC‑3), Dolby Atmos and Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX and AAX+) | Yes |
| Video | HEVC, H.264, MPEG‑4 Part 2 and Motion JPEG, HDR with Dolby Vision, HDR10 and HLG | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | Li-ion Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes | Yes, 25W Fast Charging |
| Wireless Charging | Yes | Yes, 15W |
| Reverse Charging | Yes, 4.5W | |
| Reverse Wireless Charging | Yes | |
| Video Playback Time | 30 hours |
Discuss
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